Okay here are the answers to your questions.
I have a Mother and my Dad remarried when I was six after two years of dating his wife. I was four when she came into my life I literally do not remember a day she wasn't there. I will happily be going back home with my husband to see my Dad and Mom. Chad's family is the same. His Father left and is absent but his step-dad or dad the man that took care of him died. I always meant to put it in there but never saw an opening.
The last chapter is a day dream. He's imagining what would happen if he went into her room only to be confronted with reality.