The way I see it is that he stole something you needed and instead of him selling them to someone else and getting his money the same day he decided to help you and wait for his money.Now he needs something and you are not going to even bother trying to help him?

Please don't call yourself a friend the guy obviously needs it or he wouldn't ask for it earlier.Nothing else matters apart from the fact that he helped you and now you are saying fuck off.