HELP ME. URGENT

So my boyfriend and I are not drinkers. He has only gotten drunk once but that was when he was going through a rough breakup. He tells me he would only drink with me and drinking with his friends or anything is not a thing for him (its our value) so fee nights ago he went to a gathering with 3 of his friends and apperantly I did something to hurt him that night and he got drunk :/ he told me next day he got drunk but didn't do anything stupid. Its the fact that after a year of being together he would go against our values I mean the reason he got upset with me because I uploaded a video of guys dancing (he gets extremely insescure over it) on mu fb page :/ but I think getting drunk was above and beyond after everything like I trusted him. Should I breakup with him?