Thanks, glad you liked it. And here are some explanations that will hopefully help you understand the emotional rollercoaster. Thing is Alison, is as you mentioned traumatized. As well as not your average girl. Keep in mind Alice has always had something to do with her mood. That's been implied since Alice hints were first-ever dropped. In short, Alice often boosts her levels. On the other hand... Alice is Just as bad if not worse than Alison, in terms of growth. She is basically an infant in terms of life experience and emotions. It's not as if she knows when it is time to be serious, and when it is time to ask questions. If you noticed during the sex scenes with her. She is easily excitable, as well as very agreeable to doing the spank and much more. She's curious and still inexperienced.
I can only answer on the good ending. Good ending Jessica; takes her daughter and lives with her. Maria grows up knowing her daddy, and we visit her once in a while. Jessica is not dumb, she knows he had intentionally or unintentionally moved on.
They stay as close as they can for the sake of the little monkey. As for the bad ending, heh... To be continued.