Should I Still Go with Him?

so my friend and i decided to have people over, one of them being the guy i’ve been involved with for four months now and we’re talking about dating. four guys come over including my guy, so they’re all laughing and stuff and my friend and i are confused why, until they all leave, except one guy who lets my friend and i read his phone. we find out all of them were talking about my friends ass on a group chat they all made and my guy was saying stuff like “smash fs”, “phat”, “omg damnnn”, “you guys going at it under the blanket🤷🏽‍♂️” and “hey i gotta good view” but that’s not even it, i was laying by him when he was saying all this stuff about my friend... my guy and my friend used to be together and he gets mad at me if i say another guy that i don’t know is kinda cute on instagram... should i stay with him?