Breakups

So me and this guy have been Darwin’s for almost 3 years and it was soo super great in the beginning but once we found out we was pregnant shit hit the fan he changed COMPLETELY and now our daughter is gonna be 2 I’m at the point where I’m done and over the fighting the bullshit and the Constant being a asshole bc I have an attitude and I hate to be around him anymore like just being in the same room I get an attitude with and I’m really only staying bc if our daughter I need opinions. And help advise suggestions of it or anything I’m desperate