I've been with my boyfriend for 3 years we broke and got back together and nothing was the same he just acts like he can give 2 shits if we break up again or not he not supportive anymore

I said I was insecure about my post partum body and wAnt to work and he he doubting me saying it's stupid it's not going to work who I'm trying to look good for etc.

Now we get off the phone and he has me thinking I can not trust him we were having a conversation about every man being turned on by naked females I said he cant speak for everyone because some men will only find their significant other only attractive and a turn on and anything else a turn off then he tried to compare then same thing about women so it came down to me asking him if a girl got naked in front of you will you get turned on he said yes but that doesn't mean he will go do something.....he wont something because has me at home and he can fuck me whenever he wants... I was like no because how that looks u just got turn on by another female and u going to come home and fuck me? You thinking about her while u fucking me. Idk I just need advice I'm literally heart broken that man I love and had a beautiful son with Is saying thing he never said before its like I dont know him amymore.