What have I done? I want to know if she is okay, but...?

You did not make her mad from what I feel from what all transpired. She might of been at first because of how overwhelming the situation got and on top of it all her past relationship with this guy. I can almost bet that she is feeling very suffocated by all the drama that has happened to her. Do you know any of her friends that are girls that might be able to get into contact with her? I know you what you were doing when the stalker showed up. It is called the Knight in Shining Armor part to come save her from it all. Well you have been doing it all along there champ. With her crying a few times as you have mentioned, I feel in my heart this a good thing. She is going through a healing and grieving process from her abusive relationship. Just be there for her when she needs you keep it simple, take baby steps by being patient, and keep being yourself. Depending on the amount of abuse she went through, it will dictate how she reacts to things, and how long it will take her to heal from it. If you don't know any of her girl friends then you will have to just respect her space for now. Oh it would not hurt for you to say a prayer for her health and well being.