Does love always hurt

My husband is a lying cheating loser he cheated on me years ago I forgive him and now i find out that he was going to help some girl after midnight. She was ringing him yesterday and he didn't even pick the phone up so I was thinking why is he busying his phone then I looked today and see a girl asking him is he still coming to help.

I'm 37 weeks pregnant and I love him so much I don't think I can leave him but u can't take getting hurt again and again. Should I confront him or leave it. I don't want to fight but I'm just getting fed up with all his lies. Even if it is a friend why hide it and not tell me and also why don't I know her. Just feel like I am a fool for being a good wife while he just disrespect. I really try with him please someone help I need some advice.