Just found out my gf has cheated on me for the past 6 months
Might be the unpopular opinion but straight guys don’t “makeout” with men. I’ve been shit faced drunk and never, ever thought about that. That’s just my .02.
Ive kissed a dude before when we were both drunk cause I thought it was funny.
If you have an open-kissing policy, i would let it go. The gender of the person being kissed isn’t particularly important if the marriage is solid in general. Though if you suspect he’s figuring out he’s bi or pan (or poly) i would give him a safe space to discuss those feelings. If he feels attacked he might retreat and be unable to share his sexuality journey with you. I’m a big fan of trust and open communication in these matters.
If you did not have an open-kissing policy, then yes. A conversation redefining what sort of contact with friends outside the relationship would be sound. “So, i accidentally found this message from 2018 while looking for [topic you were looking for]. We never had an open-kissing or other sexual touching policy before, so this is something we need to discuss. Do we need to redefine what boundaries we have in place outside the relationship?”
It’s probably happened because he was drunk.
Someone suggested that you should watch a movie with him and bring it up, I think that’s a great way to start up a conversation, maybe ask him if he has experienced with men? Or does he find men attractive?
Maybe it was just a date or them being playfully drunk and he has not given it any mind since then.