Friends with benefits relationship help?!?

Alright this does suck and I've been in a some what same situation before- I think you should talk to him because you still are friends (friends with benefits, but friends none the less) avoiding you is harsh! sure its awkward but giving you the cold sholder isn't right if you don't get an answer first! ask him why he is giving you the silence> if he says it got awkward try to work it out and put it past you if hes obnocious about it forget it and move on because he's not worth your time!