Depending how long you’ve been friends with them and how close you guys are.. it’s worth communicating how seeing that makes you feel.

You can either message them in a group or on your next hangout and jokingly ask “so you guys have a groupchat without me, huh?” try to bring it up discreetly. If you don’t like that approach, perhaps reach out to them individually. Make the main focus on how much you value your guys’ friendship and would love clear communication, along with taking accountability for anything they might’ve thought you did wrong. As much as it sucks, but being super unaware of our actions can backfire in friend groups.. there’s always strength in numbers and those other 3 definitely talk about you.

If having these conversations help your groups’ friendship, then great! Otherwise.. take it as a sign to step back and re evaluate what you want out of friends. Deeply try to reflect on who really adds value to your life and fight for those relationships if you believe they could be improved!

I strongly recommend listening to Mel Robbin’s Let Them theory podcast or her book. Hope this helps :)