what to do

hey
i had a friend...we were very very close...
but he is bi...
We never had something...but it looked that way...we held hands...were always sitting against each other...
i really loved him alot...
now he's mad at me..
he said i accused 2 friends of him and him..
he was already mad o i couldn't accuse him of something...his friends...well with one i don't have any contact..and i asked the other..and she said..you didn''t accuse me he exagarate that a bit i think..but because of him...i lost 8 of my friends...2 veryvery good friends...well i thought they were...
i e-mailed him...that i really miss him..that i don't understand why he is mad...because the things he said..i didn't understand why...
i got a e-mail back...and he was very very mad..that i had sended him an e-mail and did like i didn't know what he was talking about...
He made a argue in the middle of my exam week...so i'm pretty pissed about it..
but i'm sad too.. i don't know what to do anymore..
any advice??:$