Not the serial killer kind but the every day "Sociopath Next Door" type who lacked enough empathy to realize he shouldn't steal from his elderly mother?
Or perhaps he was simply an addict - addicts do that kind of stuff too.
Either way, growing up with an f'ed up dad might trigger some self esteem issues. Usually daddy is the person who first teaches a little girl that she's awesome.
Nonetheless sounds like she handled his a$$ and I'm not suggesting she has any kind of super serious issues because of it. But she may be someone who could use affirmation and support for who she is a little more Ethernet next.
