Is it wrong of me to demand a decision from a troubled girl? She clings to an abusive ex but likes me?

It is sad but some women gravitate towards men that hurt them - they feel they are not worthy of love so they should settle for what they get - unfortunately this only comes with age a therapy. I know you care about her but do you want to go down this road with someone who is damaged - it is sad to say but sometimes you just have to move on - you can not save people from themselves they have to want to save themselves.