A downward spiral..

[Strberypoptart]

Forgive me if this post is really long i guess i kinda just would like other peoples unbiased oppinions.. My boyfriend and i have been together 2 years however our relationship started out merly as friends who occasionally had sex, well up until i found out i was expecting, then he just kinda disapeared until our child was already 3 months old, he decided he wanted to be involved in her life so i gave him the oppurtunity, and he was pretty dedicated until i found out he was going to be incarecerated on a warrant, i still wanting my daughter to have a father wrote letters to him, visitied him every visit with her and soon our own relationship began to grow he was incarcerated from April Until December and Missed her first Birthday and alot of importanat moments, when he finally was home it was so great he spent every minute with our child and i, and seemed to really make up for being gone,until about mid january when he began to hang out with some old friends, i spent the days with him, and would leave at night, well one day i called him and texted and he replied i cant be with you anymore its me not you, so i asked if he cheated and he admitted it, when i went to get mine and the babys stuff saw he had a large hicky so we ended things on a bad note, but i still allowed him to see our child, by febuary 12 we had decided to try again and he admitted his mistakes, and we tried again, throughout feb he still partied alot and chose freinds over me and even hung out with girls and ex flings all the while hiding it, while i tried my best to make it work,until one day web finally had a breaking point when he got arrested for retaile theft and went back to jail, and i found out alot of his secrets i gave him an ultimadum either his old life or us, well he chose us and when he got home was more devoted then ever he spent alot of time with us and we even moved in to stay, but then things got rocky again we began to fight alot he would leave constantly, one day we went to the poconos and ended up arguing the whole way down, we got into a huge argument and he pushed me into the couch and threw pizza into my face the police were called and he ended up with harassment and criminal misconduct charges, and we again were broken up, he was texting girls from the past and just doing him, well after a few days he began to apoloagise say how much he loved me and i took him back again,hoping things would get better and the always seem to for awile,but since then he has texted a girl sayin he missed her sweet ass, had facebooks messaging girls telling them there beautiful, and all this stuff, it always leads into a fight were he will break my cellphone,smack me, calls me names or has kicked a dent into my car,broken my turn signal switch and the last fight smashed my brand new cellphone,pulled my hair,smacked my face, and broke my driver side window to get me to let him into the car, he always seems to make me feel quilty about what happened, like it was my fault and is always super nice making me so loved its confusing... and idk if it is my fault anymore, i know that at times this relationship can be toxic, but at times it is good, i just dont know that the good is worth the bad anymore, but everytime i try to leave it seems like he keeps pulling me back sweet talking me,or i miss him and fall into it all over again,i know that i love him but i dont kno how to get out of the downward spiral,i dont know if he will ever change even though he says he will,i feel like it keeps getting worse and worse as months go by..and im expecting another child in september.. i dont know what the breaking point is or what well make me even have the strength to walk away, i know that i dont trust him and he dosent give me any reason to yet he always gets so angry when i dont, i know i am over jealous but he has given me many reasons to be insecure in this relationship, and none to feel good about.. i dont know what im looking for just advice i suppose