They do all say that. When he said that, you weren't giving him any reason to think his life at home would be any different if he returned.

Things have finally clicked for you. You are working on lasting changes that make you a stronger person. One that is more attractive. No one can promise he will come home, but there is no doubt in anyone's mind that he does love you. MHO, I think he will rethink things a little ways down the road, once he sees things sticking, becoming good habits.