My boyfriend thinks he's ALWAYS right...?

whatever i say is either wrong or non existent. like he asked me about the requirements for getting held back a grade in school and i told him what they were and he declared that i was wrong. then i said he abused me and he started saying he's never hit me or raped me and i said he VERBALLY abused me and he started saying there was no such thing! he gets bad grades so he accuses me of cheating just because i have good grades. and when i tell him im texting a friend he ALWAYS guesses that its another guy and he wont take no for an answer. it gets so annoying how he thinks he's always right. he's even said "im always right" andd when i say no he stillll argues! he even argued with me about our anniversery andd my eye color! like wtf. those are two things im positive i have the right answer to! what should i do ?!