I️ don’t know how to stop thinking about I️t ☹️😩

So like a month or two ago my boyfriend went to two parties in one night without telling me until he was already there......( he knew I️ wasn’t going bc I️ don’t go to parties bc I️ don’t want anything with me to happen like that and risk my relationship) so like a week later someone tells me he kissed another girl and all his friends were in the room (and I️m cool with his friends and some of them are friends of mine also and one of them is like my brother and we we’re close before my bf and I️ ever started dating) buh anyways so really embarrassing walk around school with everyone knowing and nobody telling me until a week after all this happened so we broke up and I️ couldn’t stop cry I️ was a total wreck☹️ so we got back together which I️ know was dumb but apparently he didn’t kiss her she kissed him and it’s been like a two months or so and I️ honestly don’t know what to do I️ know I️t was “nothing” Buh I️ can’t get I️t out of my head and he doesn’t have enough respect for me to not go to parties for a while I️ still don’t trust him.... can someone pls help me? Do you think that was cheating? Should I️ just call I️t over ( I️ love him to death😩😪)? Someone pls help me!!!!!!! Pls no negative comments I️ just need someone to talk to about I️t 😔 oh and he was going to lie and say I️t didn’t happen and he didn’t even tell me he literally just let me look stupid 😔