5 year old girl timeout help continued from previoau

I am taking care of my friends 5 year old daughter for a while. Her and her ex husband are divorced and she recently discovered that anytime her daughter has been at his house the past two years and a half years, she's been sexually abused by him and his friends.It hit the mother very hard that this happened to the little girl and she is going to get help for depression, before living with her daughter again because she doesn't want the environment to be unstable. Originally she was supposed to be returned to her soon, but it does not look like that will be happening, I will be getting custody for a while.

She still won't willingly go to timeout. I have no idea what to do. She hit me one time and ran away. She's asks
Why do I have to go to timeout?
Why do I get timeouts?
Why are you so mean?
Why can't I do whatever I want?

How do I answer these? Please help.

Hmm this girl has been through a lot and is probably dealing with very painful and confusing feelings. Are you getting therapy for her? If not I definitely suggest you do. Since you are now her caretaker perhaps you can also go in sometimes with her and work on these things with her and the therapist.