My heart goes out to you because you're on the receiving end of his deeply rooted problems from the previous relationship. Sounds like you were the rebound relationship, even thou he thought he have loved you he now knows there is nothing inside his soul he can offer you. He just became emotionally unavailable, it stems from lack of proper closure from previous relationship. Same man often do this to kill the pain of a previous relationship vs dealing with it for a long time. I'm sorry this is happening to you but this has potential for being long and painful for you. You need to think about your needs in a relationship and look at yourself objectively. I know it seems impossible right now but you need to be strong.

Come here anytime you have a question or just having a hard time there are many wonderful and supportive folks on here.

best of luck to you.