I just wanted to say:

You loving him still. Does not reflect on him or what kind of person he is. It reflects on who you are, that you are able to love and not hate him even though you know he doesn't deserve it for everything he put you through.

She may be really happy with him right now. But remember that after awhile he could do the same to her that he did to you. You did nothing to cause him to be this way, and she is not a better person than you were, so what reason would he have to stay with her forever? I don't like to assume things but I don't think they will be together for very long. Right now it may look like it, but wait and see.

People change, but if he wanted to change and be a good person he would at least act like he cared. At least you know who you are. You a good person, you aren't like him and you are a strong person.

That's all. Take care.