10 subtle signs your partner is no longer happy in your relationship

• A lack of communication, disengagement, and a sour temperament are all signs you can look out for if you think your partner is unhappy.

• If you find yourself making constant excuses for your partner and their behavior chances are things are not going well for either of you.
• If you've noticed your partner is not working to fix the problem, even after you've tried to talk out your feelings with them, then it may be time to re-evaluate the relationship.

Regardless of the seriousness of your relationship, the feeling of not knowing what your partner's thinking is something everyone can all relate to. But let's face it, it's mentally exhausting trying to decode every text or dissect every conversation. And then there's the dilemma of whether you should say something or not? Will doing so start a fight if there really is nothing going on? 

Of course, it's impossible to know exactly what someone else is thinking without them telling you. But luckily, there are a few subtle signs an uninterested partner may exhibit.

INSIDER spoke with three professional dating coaches to understand a bit more what you can look for.  

You and your partner are not communicating in the same way.

If you and your partner were serial texters and suddenly there is radio silence on their end, or you've always updated your other half via Snapchat and now they're just going unanswered, something may be up.

"In today's social media world, I think you can definitely take cues from their online activity," said Lori Salkin, the senior matchmaker at SawYouAtSinai.com and dating coach. "If your partner was always liking your photos and all of a sudden nothing, or they were always sending you Snapchats and suddenly you're getting ghosted, you can sense that distancing," she told INSIDER.

According to Salkin, these could be signs that they are unhappy with something. Of course, it's not necessarily you. Salkin stresses that when communication between you and your partner goes down, you shouldn't jump to conclusions too quickly. "If you're still committed to the relationship, be patient. They could be feeling distant because of a deadline at work, or a family matter, or something personal that's bothering them. You don't necessarily know."

You find yourself making a lot of excuses for them.

"If you're constantly saying, 'It's fine, it's fine, it's fine,' it's probably not fine," Salkin said.

"Especially if you're making excuses for behaviors that are not what you want from your partner anyway, something is probably up." Salkin said that when the excuse-o-meter hits a high is when you need to look at the bigger picture and really assess if this person actually has an interest in dating you or not.

Your conversations are completely one-sided.

According to online dating coach Joshua Pompey, you should pay attention to if your partner seems disengaged.

"If you're trying to talk to your boyfriend but he's on his phone or playing video games the entire time, he may be physically there, but he's not really present," Pompey told INSIDER. "That disengaged feeling can be a red flag that something bigger is the problem."

If you're having a conversation with someone you're supposedly in a relationship with, there shouldn't be any doubt that they want to talk to you, too.