My guess is that he is confused. In some way he still loves you and knows it. He enjoyes being with you, but he can't allow himself to acknowledge it because then it means his other feelings about wanting freedom are wrong. WAS's can't allow that their vision of the greener grass could possibly be wrong.
Welcome to the world of the yo-yo.
Don't let it get to you. Know what it is and don't let it drive your emotions.
