altruism or being used?

One of my friends got himself into some serious debts. I've loaned him money, helped him get his admin organised, I've helped him move into a new apartment....and I single-handedly moved his stuff back out, after he had fled the country in an attempt to run away from his debts. Now, he's back and I've managed to get him into a program to pay off those debts over the course of the next three years. Until recently, we were quite close and he shared many of his fears and thoughts with me and I was glad to be there for him, any way I could. His life seems to be improving now and I'm happy for him. Two weeks ago he started ignoring me and blocking me, because his current girlfriend doesn't believe our friendship is merely platonic. (it really is, though) I do not regret helping him; I did it for him, not for myself. I'm happy he's trying to rebuild his life. I don't think he's in a nurturing relationship right now, but I think that's for him to figure out by himself. My other friends keep telling me he's using me and he's not treating me with the respect I deserve. I agree partly: I do not feel respected anymore. I feel ambivalent. What should I do next? End our friendship? Keep a low profile? How does that teach him not to forsake his friends for romance? We've all been blinded by love before, so I understand why he's doing this right now, however, when I reach a point where it's hurting my feelings, should I end the friendship? I've tried to talk to him about it, but he remains incommunicado. Still I am doing his admin for him and making sure he stays in the afore mentioned "debt program"; it's not helping him to move forward, though, because currently he's not an active part of sorting out his admin. Please advise me....