Hey,
I was wondering if you have tried to contact him, I know you mentioned that he won't talk to you or have contact with you. Try just calling him, leaving him messages, emailing him, or mailing him a letter just to let him know you are concerned and still care about him no matter what. I know it is difficult to be lied to, I've been through it with my boyfriend. Things can get better, you just need to push a little harder and I believe you can get some questioned answered and maybe hopefully the two of you can become at least friends again.
Best of luck!