Im being accused? Help Me?

My friend, recently got his facebook account hacked a couple months ago, the person that hacked his account has been posting rude comments from the hacked(friends account) such as: "I have a confession to make:Im gay (:" and "I suck huge ," anyways... me and him have been good friends for a while, (I would go over to his house and hang out with him, and we would go see movies and stuff) last saturday, he calls me and says "Why the **** did you hack my account ******?" and i said "I didnt? idk what your talking about?" then he hung up.. So now he removed me from his friends list and blocked me, (He made a new account due to the old one being hacked) and my friend told me he put a post up saying "My old account was hacked by (My name) all the gay comments posted were from him. My best friend commented saying, "Where's your proof?" and he said "Nic (his best friend) forwarded him a message saying this: "hey Brian hacked your account and was posting gay **** on it so that whenever he would post something, he would let you know so that he could gain your trust back." Bestfriend: How do you know Nic's not ******* with you? and he said "He said other people saw the message too" and my bestfriend said "Let Nic show us and then we'll believe it." So basically what went down is, Im being accused of hacking my friend(ex-friend)s account and he has absolutely no proof at all. I did not hack it and i dont even know his pword, nor would i have any reason to hack it. Is there anything i can say/do to prove that i didnt hack it? Anybody? Please! Everybody hates me because they think that i am some kind of who goes around hacking peoples profiles.. when im not, im really a nice guy:) so please just help me.