- I have never been hurt in a relationship, no one has ever cheated on me.
- all I've been doing was taking advantage of their kindness and love
- we were two spoiled children because we got about everything we asked for. - loved my sister more than he loved me.

I'm guessing, but what I have highlighted above is probably why. The last point might be a bit obscure. But if you hurt one of these women, you are somehow making yourself feel better because it hurt you that your sister was more favored than you were by dad.