Spam
Your mom cheated on your dad. She walked in on him fucking that hooker chick, Sam's mom in his office. I was there. And then she found out about all of Dawn's kids and shit and decided to get revenge.
Your dad sent Chris Cross to tail her and Peggy had her thrown out a fucking window and fucked another dude while she lay bleeding out on the grass below. That's why your dad's doing this. He's trying to get even. He still loves your mom or he wouldn't be trying to torture her.