Can you live a life of solitary sex? If you can't, why would you marry someone you have not been having sex with unless you didn't know that it would be a sexless marriage (maybe you thought he was saving himself for marriage/against premarital sex?). Are you in love with him? I have read in many articles that sex strengthens a marriage and I think that if both of you do not figure out why he doesn't want you sexually and/or why you would accept a sexless marriage--your marriage will be unhappy.

When you try to talk to him--Does he take the discussion seriously? Is he opening up or closing down? Keep talking with him. Sorry you are in this situation.