He liked you, but still didn't want to jeopardize his then-relationship because of it, and then panicked after you admitted it to him, pushed you away, but then proceeded to break up with his then girlfriend soon after that? Idk, but I'm getting mixed signals from your story. Seems like he can't make up his mind over things. It could be anything. He could be sorry that he cut contact with you and now wants to make-up, but he doesn't have the courage to approach you personally or maybe he was thinking of you as a "back-up" after his relationship ended since he admitted he liked you? You can always ignore it, but if you want to know what's going on, maybe talk to your friend and see if they can find out why he's still interested. Good luck and hope everything turns out fine for you!