Leaving him bc of my daughter

I am almost 24 weeks pregnant my bf is a good guy travels a lot for work but a good guy my daughter for every reason hates him they pick fights all the time and never get along I come home from work tonight to them both non stop I just cannot do it anymore I'm stressed out and am thinking about leaving him bc I cannot make them get along I'm literally in tears bc I cannot do it any more 2 kids 2 different dads I'm not crazy I just want peace in my life and I'm not ever going to get it with them two being around each other