You are right, it is very frustrating.

He didn't do any of the work and now he seems like he has all of his plans in place, but he doesn't seem too happy.

I am not sure of the right approach either. I just need to keep working on myself, GAL and doing 180s. I think he told me what he thought I needed to hear so that when he left I wouldn't cause any drama. I really trusted that he was going to do the right thing, but ultimately feel like he played me.