ME? I'd maintain things status quo until the loan is completely paid off. Friendship offers can be reasonably considered at that time. His treatment and general callousness towards you gives you every right to be protective and cautious.
He should be just as interested in restoring the friendship at that point if he is sincere about missing you etc. Never forget the reasons why any relationship cool off. Unless there is clear evidence of changed behaviours is it really reasonable to think that someone has changed?
You don't have to be such a sweet face all the time! MUAH
Uzzah