Help!

So me and my BD have been having issues since June/July and I don't feel its getting better especially after we found out I was preg. The communication sucks between us. He doesn't talk to me unless Ive done something in his eyes.

Backstory...

We started talking last Oct and he moved from oh to Fl in Dec. We've known each other for a very long time b4 that. Talked about getting married and having kids etc. After his bday in Jan I got him a phone and he was set to go to school.he was SO LOVING towards me But then I didn't like the fact that he was ALWAYS on his phone! At first I tried to not let my insecurity get the best of me but eventually it did. I looked thru his phone. And eventually his behavior changed. Yes childish of me... It came to a point where we broke up. He moved back to oh and a week later asked me to go with him. To start over. Of course I said yes. So I quit my job apartment and light bill and moved from Fl to oh. Things started off great but then we got into a car accident after 11 days of me being here. He proposed to me. I said yes Cuz I truly felt like he was the one. (9mo since the new year he hasn't had a job.) June comes and for some reason he changes. Like he starts talking to me like Im a child. I didn't notice immediately Cuz I thought (wrong) things were still ok. Then fathers day comes up. I do my best to make it special even tho I had to work that day. He starts not talking to me as much. And I never really understand why. Then I get fired from my job and Im feeling like shit. No one cares tho... He is (still to this day!) distant from me and would flip flop between loving me and ignoring me. Then when my son comes to visit (8y/o stays with EXHb) I thought things were gonna be ok but his BFF (a woman) puts hella pressure on us saying we need to do things as a family. I not knowing any better feel obligation to do it Cuz I haven't much time with my son since (long story short) my EXHb ripped him away from me. And ds behavior wasnt ideal. Not that he was bad but my BD has different ways of doing things and expected my ds to behave a certain way. Then we find out I was preg. His friend moves into the place we were staying at and I swear this man is a fucking ho! Always talking about fucking women and All his conquests etc. This guy didn't have a job either which is why he moved into the place we staying at. Now all of a sudden (he was still doing the flip flop) BD loves me for the last week of July and I was set to take my son back to his dad in ga. When I come back its back to me being ignored. I try to connect with him but its only when he wants sex. And a couple of weeks ago he has sex with someone else. I find a condom laying on his pants pocket. I should have left then and there but with $0.00 to my name and no family to go to I stay. I distance myself from him and barely spoke to him about anything especially the things that have been bothering me. He would always make me feel as if I do wrong and doesn't see what he does (and doesn't do) to hurt me. But its never his fault. Im always wrong! I admit my mistakes and do the best I can to fix it. I really need advise.

Please. No bashing. I feel bad enough.