strange relationship

So I've been with a guy for four years. I have two kids from prior marriage. It's really bothering me that his family has never met my kids or my family. He rarely spends the night at my house. He still lives at home with his parents.  He thinks I'm being dramatic about these things. These things are really upsetting me and I've told him over and over it's just not normal. I see him at least four days out of the week but he rarely stays the night. I work full time job , he's got a part time one, so he comes over and hangs out with me and kids then goes home. He's there when I need help with things but I don't feel it's enough anymore. Am I crazy to want and expect more!?