Praise be to Allah.
She should praise Allaah for the blessings of guidance and be steadfast in adhering to the truth. She should do a lot of acts of worship and obedience. She should try her utmost not to be alone with her father in the house. She does not have to tell her husband about what happened, if she gets married. She should ask Allaah to conceal it and to grant her a way out.
Her father is a criminal who should be advised, rebuked and deterred.
We ask Allaah to keep us all safe and sound.