Am I overracting?

I've been I'm a relationship with this guy for almost 2 years now. I have a 7 year old daughter, he's 22, and I am 28. He has a bad attitude at times and my daughter picks up on that. She's very protective of me. When he gets on my nerves, she tends to worry about my well being rather than interact with him. She's a very mature/intelligent child so she knows when things are not right. He gets mad because she doesn't cling to him and kiss his ass. Whenever I ask him to do things with us, he always says "your daughter don't like me" and things of that nature. We're expecting a boy next month. He always talks about how he's going to do fun things with our son and leave me and my daughter out of the plans. Am I overracting or does he need to grow the hell up?