I don't know... if I was sexually abused then I should never stay in the same place that the dude lol
It is like she asking for more...
These kinds of things are actually pretty common even with physical abuse.
Usually happens if someone feels attached (either as friends or usually as lovers), they stay even if that person is beating them.
This is written by someone who stayed with their abusive partner for 9 years. Why We Stay: A Deeper Look At Domestic Abuse | HuffPostWhy do Abuse Victims Stay?
These kinds of feelings, and staying with someone even when they are beating you are unfortunately incredibly common.
She more than likely didn't have the emotional attachment that a lot of these women in these abusive relationships had, but it's pretty clear from the article that she viewed him as a friend and had some sort of emotional attachment.
The fact that it can be so hard emotionally to get out of abusive relationships is a big part of why these kinds of movements/trends are crucial. Society needs to do as much as it can to empower and protect women so that they are able to get out of these kinds of situations.