Need encouragement

Ladies I need some encouraging words, I feel so broken and like I'm losing myself. The father of my child and I just broke up for good last night after 4 years. my son is 2 months. I don't understand where I went wrong from the beginning of the relationship I've given him so much of me when he got in trouble with the law and got put out of his mom's apartment I took him in and allowed him to give nothing for it because he was paying all his lawyer fees I found out he made a baby on me with another woman when we were 3 months into our relationship and he and his family kept it from me for a whole year still I stuck it out even though I was so hurt he went to jail for 6 months and I spent my last getting downtown and back every week plus I had to move and prepare for a baby then when he got out I helped him get a car because I sold my second car while he was locked up and I felt bad! Well he decided to get a 2014 camaro for 411 causing our insurance to go up to almost 300 which I paid a couple of times because he was short.  after having my baby we were so distant that it hurt it was almost like he found me to be disgusting because I had a baby because he refused to sleep in bed with me or to show me any affection so I got tired of the non appreciation and the feeling of not being wanted so I asked for time apart because I felt it could help well he went to his mommy's house while he was there I found out he had been talking to some woman from from his job every day after work and I strongly believe he is messing around with her so I broke it off for good with him I turned his phone off (cause I pay it) took him off of my Insurance then last night I was so angry and hurt I went on the account where he financed the car and charge his bank account for the second time this month 411 dollars and I currently have all his shit in my truck ready to take it to good will after work and pawn his video games and I applied for child support. I don't want anything to do with him anymore! I've never been so hurt and betrayed in my life then he tells me I have never done anything for him and that i ruined our relationship I'm just so hurt please tell me it gets better please!