EM,

Cat03 is right. I don't know how much perspective can help you. His problem is with himself. So many times it's not love but an unwillingness to take action to hurt someone that causes them to bounce back and forth. He hurts you without trying, but he refuses do what's necessary and hurt her. I would call one of the presenting couples or the Post session presenters and ask their advice. Those people have a lot of experience and will be happy to try talking to him about his problem.