I no longer know what to do. Please help.

I have been in this relationship for over a year now and i have really screwed up in his mind. I have lied and done things i probably shouldn't. But last night was possibly going to be the last night that we were together. We had a perfect night up until a conversation about the past, before I ever met him. I handled it awful. He is now not speaking to me. I have tried to invite him over and to do things with me and all he replies back in no and to leave him alone. I have apologized so many times that it doesn't matter to him anymore. I could say sorry every second of every day and it wouldn't make a difference. I no longer know how to handle this. I have ruined our relationship. Could someone please tell me what I can do to get him to talk to me again and possibly get our relationship back to normal? I need your help!!!!

leave him alone... give him time too get over it