what to do??

My husband and I have only been married for 5 months and he doesn't try to make me happy anymore. By that I mean he doesn't give me a hug or kiss me and when I try to kiss him he like doesn't kiss me back. He also doesn't ever have sex with me anymore. We use to have the best love life.. I have no idea what happened? Does anyone have any advice or comments?
Oh and he is in the military and I moved across the country from everyone I know to be with him. So it's hard to get nothing when he is all I have here.