Idk what I did, but I just want to be friends?

My friend hates me and I don't exactly know why. He liked a girl, and they talked a lot, but she asked me why he doesn't talk to her anymore. I didn't know, so she got me to ask him. He just said "idk" so, I told her. She wanted to know if he didn't like her, so I told her no. I told him that she asked, so he was obviously prepared to know what he said. All of a sudden, I get "what the **** you tattletale goddamn you idiot" and I'm like what!? Apparently she started talking to him about it (not in a really nice way) and how just because she didn't like him he didn't need to ignore her (she sent the message to me later.)

The point is, I really don't know why he's mad at me. I just talked for both of them, and both of them knew I was telling each other what the other said, word for word. She's ok with everything, but I'm still confused. I just want to be friends again. I was put in the middle of the argument, and blamed for it.