Move on, he's got another girlfriend! Go find yourself someone worthy of your time...and who will treat you well!
He doesn't want us to be friends on FB and I'm not sure of his reasons but he's friends with his other girlfriend whom I just found out about on FB. I've sent him a friend request on FB but he never accepted. What should I do ?
Yep, he's moved on; so you should too.
Men are like buses, they come along every ten minutes and are pretty cheap.