• Tana Mongeau's ex-girlfriend Bella Thorne has stuck up for her on Twitter.
• After photos surfaced of Mongeau's new "husband"Jake Paul meeting with his ex, Thorne tweeted: "While her family is going thru some shit... not a good look jake."
• Mongeau didn't join Paul on their honeymoon because she had a family emergency. She later revealed her grandmother had died.
• The newlyweds don't seem to have spent much, if any, time together since the ceremony. It's also still unclear whether the wedding was even real.
• Mongeau has tweeted some cryptic messages since the photos emerged. But she also posted a wedding vlog titled "Becoming Tana Paul."
• Visit INSIDER's homepage for more stories.

Bella Thorne defended her ex-girlfriend Tana Mongeau on Twitter when she saw Mongeau's new "husband" Jake Paul had met with his ex Erika Costell behind her back.

She retweeted an account that said Paul had "used all the clout he can" from Mongeau, and is now "moving on to newer scandals."

"While her family is going thru some shit... not a good look jake," Thorne wrote.

When Mongeau spotted the pictures of Paul and Costell together, she tweeted "lmao wtf" with a smiley face — presumably a sarcastic one.

Mongeau then posted a video of her singing a parody version of Ariana Grande's "Thank U, Next," where she referred to her exes and mentioned finding out about the photos on social media.

"Thought I'd end up with Bella / Yet it wasn't a match / Wrote some songs about Hunter / Now I listen and laugh / Even actually got married / And for Jake I'm so thankful / Except when he goes out to lunch with his ex / And I find out on Twitter," Mongeau sang, zooming in on her face and laughing.

Meanwile, Paul's brother Logan retweeted the photos with the caption "are we SURE that's Jake... ?"

Paul simply responded by channelling Shaggy, saying "wasn't me."

Paul and Mongeau got married, in a way, with a wild $500,000 Vegas celebration in July. It's still not clear whether the wedding was for real or an elaborate hoax, because the pair haven't spent any time together since the nuptials, and there is seemingly no record of them obtaining a marriage license in Nevada.

Fans continued to speculate about the legitimacy of the romance when Paul went on the honeymoon to Europe alone after the wedding. Mongeau said this was because she was dealing with a family emergency and was spending some time with her parents in Vegas.

The newlyweds have vehemently denied any accusations the wedding was fake— something they've had to do a lot of since Mongeau said it was all "for fun and for content" in an episode of her MTV show "Tana Turns 21."

Mongeau wrote on Twitter that her comments were "pulled out of context," and that her relationship is "unconventional" but real.

Read more: YouTuber Tana Mongeau defends marriage to Jake Paul as legit after she said their wedding was 'for fun and for content'

Thorne, meanwhile, has had a rocky relationship with Mongeau for a couple of months. When Mongeau and Paul got engaged in June, she posted two photos on her Finstagram (an alternative Instagram account) of her crying with the caption "When ur ex gets engaged."

Mongeau responded to the post with "omg."

The post appeared to be a joke, because she had also shared a photo of her kissing Mongeau a few hours later, wishing her a happy birthday and calling her a "special girl."

But a month later in July, Mongeau was spotted going out with Thorne's ex, the rapper Mod Sun, and Thorne subsequently tweeted that she and Mongeau were "no longer good."

"She broke girl code I'm over it," Thorne said.

Mongeau responded with "?????", apparently having no idea what Thorne was referring to.

"Imagine taking every time ur mad at me to twitter but then telling ppl how much u care about me...................." she tweeted back. "wtf is this b :/"

Thorne then told Mongeau "U legit started dating me for twitter.. how about u answer ur phone and talk to me instead of being on Twitter."

Read more: YouTube stars Jake Paul and Tana Mongeau are getting married this weekend, but no one can tell if their relationship is for real. Here's what we know so far.

The pair later made up in New York, after Mongeau's wedding.

"i took these pictures ten minutes after we made up in New York," Mongeau wrote on her Instagram account where she posts disposable photographs. "was gonna wait awhile to post em but she just had to go apeshit on Insta rn."

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