I might hate my partners family??

Hey ladies so 2 weeks ago I just turned 4 years as bf & gf with my man and my lucky ass had to choose the son that my mother in law loves the most🙄 so throughout the years a lot of shit has happened where it emotionally ruined me. It felt like I was in competition with her to see who my partner loved the most and honestly she always seemed to win.. I can’t even count how many times I have ended our relationship because of her I even called off our engagement😭 me and my partner are obviously back together and a lot of things have changed between us in good ways I feel like he’s matured and keep in mind we’re just turning 21 so obviously we were younger when these things would happen.. BUT the point is I CANT stand his family anymore I can’t stand his mom or his brothers or his sister in law or anyone of his family lol like every time they post i get so much anger and i feel like I’m a hater or something like i seriously can’t stand them or even try to spend time with them like i honestly don’t even try and my man understands and he doesn’t force me but i wish things weren’t like this especially if we’re planning to get married.. but am I crazy for not wanting to let them in anymore?? Does anyone else deal with their S.O families?