Toxic relationship

Ok so I met my child’s father my senior year of high school and it started off really good he was such a good dude very sweet kind and romantic and I waited to have sex with him when we did it was amazing I felt a connection but then things changed he started saying I couldn’t have male friends I worked in retail I couldn’t talk to male customers and I was lonely before I didn’t want him to leave me I thought we could find sum to help us after while I had to stay on the phone all day say every where I was going couldn’t hang out with certain friends but then I got pregnant and I found out he cheated on me while I was pregnant the day after I found out he slept with her and Gave me chlamydia when I told him he acted as if he didn’t care then the girl sent me a Video of them fucking on top of tht he texted his ex and she came to my job while I was pregnant and she cussed me out while otp with him and I really love him but I want better but it’s hard letting go cuz ion wanna be alone