Confused

Me & my child’s father have been basically together for 5 years. Last February I did break it off due to us just not getting along anymore and fighting constantly my little was 6 months at the time. Durning the break up he maybe came and visit the baby 6 times, always telling me he had changed and wanted his family back and never quit telling me he loved me. Fast forward to January he meets this girl & he tells me he wanted alone time with the new gf which I told him I wasn’t comfortable with due to him not really visiting. He got mad & told me he’d get rights. Fast forward about 2/3 weeks later he marries this girl friend & blocks us In all not to mention I had to find out about the marriage thru social media. Fast forward a couple months of course it didn’t work out & gf calls me & tells me she’s now pregnant. Me & him have rekindled the relationship (he’s in process of divorce) & I’ve let him of all of that but he still doesn’t trust me, he doesn’t want me to hang out with my mom friends, & wants me to delete all my social media like I did before which I stuck up for myself & said no. The fights are starting again (we don’t live together atm) it escalates so bad that he will say he’s going to kill himself and starts ignoring me when I show concern like he use to. the control is starting again, I love him but I just don’t know honestly what to do. I feel bad bc I’ve let him back around the baby & my child loves him. I want this to work I just don’t know if the damage can be undone. I’ve let go of all the things that have hurt me but he can’t do the same for me & it bothers me so bad and it’s driving me away. Sorry for the long post I just needed to rant.