Lee,
Be there to take his calls and be a friend. This is a tough time for him. He sees his own pain more than he sees how it affects you.

He is trying to come towards you. Don't make it harder to achieve than it already is (in his struggle).

Sounds like this is your approach and it is a good one. Don't feel bad about it. It is a very unselfish thing we do if we do it correctly.