Your mom fucked your dad's best friend

Let it go. Think of all the things your mom has done for you your whole life. Maybe your dad isn't very nice to her or doesn't give her the things she needs. Kids don't always see what happens behind closed doors. Maybe you should talk to your mom and tell her that you know, and ask her what's going on. But there's no need for you to make your father hate your mother and cause her pain. Just tell her that you know and give her the chance to clear everything up.

I would definitely be getting at least head from my mother.