Need to vent

I have been with my mate 3 and a half years now and things seems like it’s only getting worse. We have a 1 year old and we are expecting another one in a few months. We lost two babies before our 1 year old and you would think it would of brought us closer but no it didn’t. This man cheated on me with all my pregnancy I think he is still cheating by the way he is acting. He literally mistreats me every day. I dint know he was cheating on me til after I had our baby I was in the hospital in the women inboxed me and of course he lied about it he stills lie about it til this day. A few months ago I went through his phone which was a bad idea and I found out it was another female he has been messing with and of course he lied and said he wasn’t messing with her. I’m trying to hold things together cause I am a high risk pregnancy and I don’t want to fight or argue about anything. I just want to have my baby and be done with him I can’t take this anymore. I’m not myself anymore I’m so unhappy because I know he will never love me or respect me the way I deserve.