Well as this is a goal for YOU and not him, if he helps, great if he doesn't do it for yourself anyway. You're fault if you get upset with him for not assisting you with YOUR goals. If it really bothers you talk to him about it.
Hmmm... what really bothers me is when he says he'll do something and he doesn't follow through. This applies mainly to house stuff, but happens in other areas too. Are you saying don't ask for help? We discussed this at our last MC session and the C though he should offer to help more, since it's hard for me to ask for help, in general.