No, it is about low self-esteem, believing that you don't deserve anyone better.
The thing is, most abusive relationships are a vicious cycle. The abuser hurts the abusee. However, then they do the whole "I'm so sorry, I really love you" and things are wonderful and brilliant until the next punch-up.
This then makes the abusee feel like its ok, its not really a problem, as he does say sorry. And he does love me, and care for me a lot, when hes not angry.
However, one thing that pisses me off is the lack of awareness of female-abuser relationships. The female abuses the male - physically, but more commonly - psychologically. And yet it goes almost unnoticed. Gah.