Monkey in the middle. Help?

I have 2 friends (boy and girl) they were friends, very close. Everyone thought they were an item. Anyways the guy made her super mad and for some reason they no longer speak (they won't say why) now they are asking me to tell the other things.

Me & the guy don't really get along only was friends because of her, he won't answer any of my questions but will only answer me if it pertains to her. What is happening?
Monkey in the middle. Help?
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