I need relationship help

I am in a rough patch right now. I'm a very emotional girl.. Not on my period! And my boyfriend is a champ and has been taking it. And lately we haven't had sex, and hanging out. He feels like I'm not happy and he is always hurting me which is wrong. He also says he isn't sure that he is happy with me. But I think he is confused. And I don't know how to handle this with out shutting down and shutting everyone out. Do I give him space or or do I hug him and talk to him? Or do I help remind him what we have had. We be been together for 1year and 3 months