Not sure what to do

So I recently had my daughter in September. Me and her father were never in any type of serious relationship. We always hinted at wanting to be together but it never happened. Recently he's made comments about wanting me to be his wife and us to all be a family but his actions don't match what he says. He ignores me pretty much until he wants sex then stops talking to me again when I say no. I want to be with him but then again I don't if he continues to play games with me. Has anyone else experienced a situation similar? I'm about to finally just move on after 4 years of this back and forth. 😞