i know you really, *really* don't want to hear this right now, but your therapist has imposed this rule precisely because he *does* care. friends are, to one degree or another, emotionally dependent on each other. a therapist who is emotionally dependent on a client is failing the client.
here are a few ites to check out, assuming you haven't already burned me in effigy:
http://mentalhealth.about.com/cs/psy...ualrelshps.htm
http://www.therapy-abuse.net/informa...boundaries.htm
http://www.exgc.com/continue/courses/ethics_1.html
even though it feels like he's being incredibly cruel and hurtful right now, he really is trying to help you. he should have been more clear from the beginning on how he viewed his relationship with you, but it sounds like he realized he screwed up and is trying to fix things so he can continue to help you.
i would urge you to give him a chance on this. he can't be your friend, but you could negotiate with him and determine what your therapeutic relationship would be like--how much and what sort of contact you both would be comfortable with, what you each expect of each other and why--that sort of thing. you could also ream him and tell him why you feel so misled and betrayed.