I feel like he doesn’t want to be with me

So me and my fiancé just moved in and he’s been talking to me really bad. I just left from my abusive home i grew up in. He will call me “‘mfr” and more. We were in the grocery store and I caught him starting at some other girls (btw I already feel bad about my body since I just had a baby and haven’t had much time to put makeup on and go to a hairdresser). I asked him about it and he got mad and told me “shut your fucking mouth” “there’s your dumbass talking”. We were in the car and he told me “bitch please”. Then we were in the car and I got upset because he called me a bitch, he took the keys and said “give me MY keys”. Btw I work full time and do my best for him and our baby. He then when inside and proceeded to take 7 ashwaghanda gummies and pretend to pass out. I’m always tired and to get treated like this is depressing. He also works but when I was pregnant he started treating me different but I significantly saw a change after I had our baby. I was only a couple of weeks postpartum and he would cuss me out and call me out of my name. I just feel like he fell out of love with me. I don’t know what to do?