Try and find someone she can talk to. It's important that she have someone to share her feelings with.

Whatever you do, don't bad mouth her mother near her no matter how much your stbex deserves it. You need to be the rock I know you are.

John, I knew from the moment I read your describe your daughter that you are a good father. She is a lucky little girl to have you. Be strong yourself. I'm impressed my friend.