Maybe having her life get back to normal with her brother back in the family home will help her get over it.
As I said, we don't know what happened. The definition of rape is small but the varieties of the act are huge. It can last for hours or seconds. It can involve physical violence but often doesn't. It need not involve the victim's genitals at all.
When we think of rape we automatically associate it with terror, pain, fear, humiliation, violent force. None of these things may have been present in this case.