My boyfriend (father of my child) is kicking me out

This month would be our 3rd year together... we have a 3 month and I’ve been suffering with ppd and being okay with my new body. I know what my body did was amazing and my son is my world. My boyfriend and I’s sex life has been nearly nonexistent. I still get sore and it’s painful and I’ve had a hemorrhoid on and off since I’ve given birth which doesn’t help the situation. And my butt has broken out which makes me self-conscious. He wants to try anal and I just don’t think I’m ready for that or ever will be. When we do have sex, he tries to put it in my butt and I have to keep telling him no so I can’t even enjoy it cause I’m worried he’s gonna do it again. So he gets mad that I won’t try it, but I mean I just had a baby 3 months ago now isn’t the time to try new stuff. So fast forward to when he left me... for thanksgiving I went to my moms and he went to his side (he never let me know his family plans and I was under the impression that he wasn’t going to be home). Well he had his brothers, cousin, and a few friends over at our place and he went and bought a tennis table and stuff for beer pong. This was his first time to ever drink and he treats me awful when he’s around the guys. So he sent me hateful messages and said I’ve ruined his life. He hasn’t been the same since he drank and has just been so hateful. He told me he wants me gone before he gets back from his job (oilfield). I have been so insecure since I had my son and he says I need to get over it which I agree, but he doesn’t make it easy to. One of my biggest insecurities is my butt. I don’t have a butt and he knows I’m insecure about this so he says “I’m sure they’ll be Phat asses where I’m working and I’ll look at them all” this made my heart drop because this is not the guy I fell in love with. He would not try to make me feel insecure about myself. I have been struggling so much these past few weeks. I can’t eat, sleep, and just getting out of bed has been a struggle. I’m still in college and I’m stressing about how I’m gonna be able to care for my son. I just need some words of encouragement...