While it's hard to take to take your focus off of him, it is really what you need to do. I know, HOW? It comes a little at a time. Even when you hang on everything he says and does pretend you aren't. For me it started with acting "as if" I had a life and then, surprise! I got one. With a little one, it can be more challenging, but get out and meet other Mom's for play dates. There are even sites for finding activities with people that have similar interests (that aren't about dating).
Alot of this is about the thoughts you think. Even then you will slip and fall and pick yourself up and do it again, if you choose to.
Is it worth it? Only you can answer that. As you can see from my registration date, I've been here awhile. Is it worth it? For me it is. Does it take more than I ever thought I had? Yes. Do I still question what am I doing? Yes.
You can decide for yourself (at any time) what you want and need to do for you. In the meantime, if you really believe he's "the one", you will need to learn to be very patient and to be quiet and listen.
As tough as it is, you will find lot's of support here.