• Tana Mongeau, who has 4.5 million YouTube subscribers, and Jake Paul, who has 19 million, got engaged at Mongeau's 21st birthday party in June.
• The pair have been "dating" since April, but openly admitted it was to fuel the rumors and to get more views. A successful experiment, since they have both gained hundreds of thousands of subscribers since then.
• They have both featured heavily on each other's YouTube channels — making out on camera, getting matching tattoos, and taking a pregnancy test.
• Nobody could really work out if the relationship is real or not, including many other YouTubers. When asked, Mongeau said, "I don't know, sometimes." But on Twitter, she insisted the proposal was real.
• Since getting married, both Paul and Mongeau have referred to their relationship as "open," but insist they are together in their own way. Even more confusingly, Mongeau keeps hinting that she is also dating Noah Cyrus.
• Brand consultant Brandon Relph said the couple are probably just enjoying themselves for now, but "history has shown things like this don't last forever."
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Two of YouTube's biggest stars are married. Maybe.

Since April 2019, Tana Mongeau, 21, and Jake Paul, 22, have been spending a lot of time together, but nobody can work out if their relationship is real or if it's all for show. And it's all gotten even more complicated since Paul apparently proposed to Mongeau on June 24 at her 21st birthday party, resulting in an over-the-top wedding ceremony in July. Mongeau now also might be dating Noah Cyrus, suggesting their marriage is open.

Here's a timeline of what we know about their relationship so far.

The relationship appears to have started as a joke

At the end of April, Mongeau uploaded a selfie video to her Snapchat that sent fans into a meltdown. She had just publicly split from her cheating ex-boyfriend Brad Sousa, but eagle-eyed followers realized the bed she was filming from wasn't her own. It was later posted by KEEMSTAR on his gossip channel DramaAlert that it belonged to Logan Paul's younger brother Jake at the Team 10 House — the mansion in Calabasas which he shares with fellow influencer friends.

A few days later on April 30, Mongeau uploaded a video to her channel called "Mukbang In Bed With My Rebound Jake Paul." Mukbang, meaning eating on camera, and rebound, hinting that Paul and Mongeau were an item.

At the start of the video, Mongeau added a caption saying she was with her "friend" Jake, and throughout filming, the pair joke around together, flirting and calling each other "babe."

On the same day, Paul posted a video titled "meet the girl i've been hiding from you.." where he refers to himself and Mongeau in jest as "two of the internet's biggest sociopaths." He maintains throughout the video the pair are just good friends, and they both just wanted to prove that rumors spread like wildfire on YouTube. Mongeau also admitted freely they should get together just for "the clout."

But then, confusingly, they also kiss at the end.

Since then, Paul and Mongeau have been caught in a bizarre in-between relationship, where they're sort of a couple, but sort of not. They've been featured heavily on each other's channels and referred to each other as boyfriend and girlfriend, but at the same time joke about it as if it's all a big prank.

The pair are both not without controversy

Brand consultant Brandon Relph, who specializes in the influencer space, told Insider it makes sense that Mongeau and Paul would end up filming together because both their careers have both taken some controversial turns.

"There are YouTubers who are generally liked by most people, and I wouldn't put those two in that category," he said. "Jake has had lots of controversies himself, but so has she. And Tana has this weird way about her where she kind of gets to do what she likes and gets away with it."

Almost exactly a year ago, Mongeau tried to put on her own convention to rival YouTube's VidCon, called TanaCon, which resulted in over-crowding, demands for refunds, and fans passing out and getting sunburned in the California sun.

Paul has faced backlash from creators and fans alike in the past for his stunts and pranks. YouTuber Shane Dawson even made an eight-part docuseries about whether or not he could be a sociopath.

"Now do I think it's fake?" said Relph. "To an extent, but maybe not all of it. I wouldn't necessarily doubt that they're attracted to each other."

Mongeau and Paul have both appeared in each other's videos

On Paul's channel, Mongeau has appeared in over 20 videos since they started dating, including one documenting their "first time making out on camera," one where they take a pregnancy test, and a vlog of how Mongeau's ex "wants to fight" him.

Paul has physically featured in five of Mongeau's videos, but she has openly spoken about him in various collaborations with other creators. For example, in a video with Vlog Squad member Josh Peck, he asked whether they were really together, and Mongeau replied: "I don't know, sometimes."

When talking with YouTubers Shane Dawson, Ryland Adams, and Morgan Adams, Mongeau said she never really wanted to be monogamous (she used to be in an open polyamorous relationship with Bella Thorne until they broke up in February) unless they were the "love of her life."

"And that's Jake Paul?" Ryland asked, to which Mongeau sarcastically replied, "Yeah."

Mongeau and Paul even got matching tattoos in May— reminiscent of a video Paul made with his ex-girlfriend Erika Costell.

Costell and Paul's relationship started out as seeming like it was all for clicks as well, said Relph, but then it developed into something real. He suspects this could be what's happening with Paul and Mongeau — they do appear to have gotten closer since the first time they filmed together.

"I don't think it's strictly like a 'come round and we'll film a video for business' thing," Relph said. "I think they genuinely hang out around that. But I do feel there's an element of over-broadcasting and over-compensating for the benefit of their careers."

Both Paul and Mongeau appear to be benefiting from the relationship by gaining subscribers

It's clear that both Paul and Mongeau have seen an increase in subscribers and viewing figures since all the speculation around them started.

Mongeau gained over 300,000 subscribers in May — her peak growth ever — according to Social Blade, a site that tracks social media statistics and analytics. She now has over 5.1 million. Paul also gained 375,000 in May, but that's far from his biggest month. He has 19.7 million subscribers in total.

Despite their differences in subscriber counts, Relph believes Mongeau may be more in control over how long the relationship will go on for. She was racking up several million views per video before Paul started featuring in them, whereas Paul sees a bigger spike comparatively when she makes an appearance on his channel.

"Tana has a very, very different audience to Jake's audience," Relph said. "Jake is usually the person who brings numbers to people, but I think Tana has helped Jake more than Jake's helped Tana in this case. Because Tana has shown she can ride through controversies without needing anyone, and people still watch her."

But whether it will last forever, he said, he's not sure.

"I don't think there are any business ties between them that would force them to stay together making videos if they fall out," he said. "But I think it's one of those where it's a bit of an interesting show and an interesting study to watch."

Paul appeared to propose in June at Mongeau's 21st birthday

At the beginning of June, Paul uploaded an episode of his new series "Team 10 Uncut," where he explained how the rumors started and revealed he and Mongeau decided to play up to it to get more views.

However, it's still true that the pair's relationship may have organically developed further since then.

It certainly looked like it when Paul appeared to buy bought Mongeau a Mercedes-Benz G-Wagen for her 21st birthday (although this later turned out to be a prank). He also proposed during her celebrations — having bar staff at a night club bring over a cake with the words "Will you marry me Tana?" iced on.

She then showed off a massive diamond ring that he apparently bought her.

"JAKE JUST PROPOSED," she wrote on Twitter just seven hours ago, with several follow-up tweets insisting it wasn't a joke.

When Mongeau's ex-girlfriend Bella Thorne heard the news, she posted two photos on her Finstagram and alternative Instagram account called " thatweirdbitchbella"— of her crying with the caption "When ur ex gets engaged," followed by 35 sobbing emojis.

At VidCon in July, Paul made a surprise appearance during a question-and-answer session with Mongeau. He read out a poem he'd written about their relationship, which was full of sexual innuendos (including rhyming "Tana" with "banana.")

He then announced their wedding date will be July 28. MTV will be filming the whole thing for Mongeau's digital reality show "Tana Turns 21,"according to People.

Mongeau seemed to further confirm their relationship on stage, saying she and Paul are "f---ed in the head in the same ways."

"No matter what I do, someone is going to try to negate it," Mongeau said. "You're crazy Jake Paul, but you're crazy like me."

On July 25, Mongeau tweeted that Logan Paul had finally come around to her and Jake's relationship. She said Jake's older brother had "cried" when he realized "Jana is real."

Later that day, she tweeted that she didn't care what people thought of their relationship.

There are a lot of questions surrounding the wedding ceremony

The day before the wedding, Mongeau uploaded an intimate, black-screen video to YouTube where she gently spoke an emotional ode to Paul about how much he means to her.

"I love you," she said. "It actually still scares me so much to say it because once I say it and it's somewhere other than my head, it becomes completely real and to be quite frank, I am so used to losing everything I love and I don't want to lose you."

Paul and Mongeau then got married at a $500,000 Vegas ceremony on July 28. The special day included a flight out on a private jet, a mansion, elaborate wedding cakes, a replica of Jon Snow's sword from "Game of Thrones," a mid-ceremony brawl, and some famous faces on the guest list.

The newlyweds left the event separately, but Mongeau later explained this was because she had to deal with a family emergency, while Paul went on their honeymoon without her.

It was also later revealed there was no record of the couple obtaining a marriage license in Nevada, and Armani Izadi, who officiated the wedding, was not licensed to do so.

Mongeau has also faced skepticism thanks to her MTV digital series "Tana Turns 21." While it was originally meant as a show to document her birthday celebrations, it morphed into more of an insight into Mongeau and Paul's decision to get married.

In one, Mongeau is shown discussing the wedding with her manager and the fact it had been planned very early on in their relationship, and rescheduled twice. She said the wedding was something "fun and lighthearted that we're obviously doing for fun and for content."

She also said she and Paul weren't officially exclusive, which many fans found confusing.

"I guess we would just take the openness from our relationship into the openness of marriage," she said.

Mongeau might or might not also be dating Noah Cyrus

Paul confirmed that he and Mongeau are in an open relationship in an interview on "Entertainment Tonight" in September.

He told the presenters Denny Directo and Cassie DiLaura that Mongeau might be hooking up with Noah Cyrus, which he thought was "dope."

"Since the start of our relationship it's been, like, an open type of thing because that's just how we both are," he said, adding he would have no issue with his wife sleeping with Cyrus, "especially if I could be there."

Mongeau referred to Cyrus as her "girlfriend"in a recent vlog, but Cyrus soon stated the two are "just friends" in an Instagram story.

Mongeau made it clear she was sick of the skepticism about the feelings she and Paul have for one another in a series of tweets in November.

"According to tana mongeau, the media can suck a dick sometimes,"she wrote, referring to an article that quoted Costell, Paul's ex, claiming the relationship was fake.

"Waking up every day to headlines like this is so defeating," she said. "Not asking for pity, knowing I subjected myself to this. This life has cons due to the incredible pros — but according to Tana Mongeau, f--- this s---."

She said she wished people understood how she felt, and insisted again she does love Paul.

"Maybe I'm an idiot for it & maybe all of my dumb mistakes are being aired as they happen in real life & that sucks," she said. "I know once again I signed up for all of this... I guess I'm just tired and don't want y'all to think I'm ignoring what I see everywhere."

Maybe Paul and Mongeau aren't ready to give up riding the wave of fame just yet. Or maybe the pair genuinely have had a whirlwind romance and decided to spend the rest of their lives together, and they're developing their relationship in their own way.

Whatever's going on, there are likely to be more twists and turns yet.

"History has shown things like this don't last forever," said Relph. "I think they're just both enjoying themselves and having a good time ... We're very much in the height of Jana world at the moment, and it will be a while until we realize where it's heading."

This article was originally published in June.

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