I'd have to say admitting that somethings I do actually are wrong, and not whats in my best interest. Changing bad habits, and allowing him to help me. I hate accepting help, yet he's always had a way of offering without making me feel bad about it.

And tied would be the constantly changing relationship. It requires lots of communication, and I've never been good at sharing my feelings. At least not the really deep ones. I'm still learning to recognize feelings when they happen, and tell him right away. I have a lot of work ahead of me still.