Excuses again. The mother is one of the adults, she shouldn't get to avoid responsibility like that. It helps the victim too to accept the guilt of the others, so that victim doesn't have to feel like they were the ones doing something wrong. Plus to break the cycle of repeating patterns.
@Tamerlane
You, and the author seems so, are ignoring the role her mother played in all of this. She should have been "Mother" just like the other characters. She had to have a good idea that she shouldn't have kids with "Father" and then that "Papa" is just as screwed up, because this is how...