Liz, how many times did you A tell you how he feels, what he would do to lose you, all the right words but never followed through with action? This guy seems to be showing you how he feels and wants. I get it you would love him to tell you but keep looking at his actions, I doubt if this guy didn't have feelings for you he would introduce his children and family to you.
Your doing so well managing your insecurities, me I let the craziness come out right at the beginning and the guy ran, your letting this guy get to know the real you and that's great, you should be proud of yourself.
I have to ask why would you think about ending something that is making you happy? What needs do you think he won't be able to meet in the future?