You don't come across as childish. Your H does. He's acting like an idiot. I've read all your words. You're a smart woman. You have a lot to offer. He's lucky you even give him the time of day. It should be you deciding if you want such a dipsh!t in your life not him being unsure about you. Know this. You have worth and your future will be good regardless of how this comes out. Him I don't know about. He needs you more than you need him. When you truly realize that, and act like it, it'll probably change the dynamic of this situation and he'll end up pursuing you.