After reading your other thread I think it is safe to say, he won’t be coming back looking for a romantic relationship with you. Sounds like he ended that months ago with the “taking time off to work on himself” thing, which you now know he didn’t.
The whole friendship thing is going to be solely based on you and what you allow as “friendship”. It will be what you teach him, what this friendship will be about. Will it be friends with benefits, friend who lends him money, friend who gives him rides, etc. etc.
Often alcoholics don’t really have friends, they have resources.
No new contact = no new hurts.