Casey is Cameron's best friend and it was a huge surprise when Casey started dating Cameron's father.
You're never going to believe this, but Casey is dating my father. What?  Isn't she your best friend? Yeah, she is, and this is not something I'm having an easy time with. Wow.  How long has this been going on? They'd been seeing each other for a couple of months before they told me.  I was shocked.  I didn't even know what to say. Well, I'm here any time you want to talk about it.  I'm sure it has to be hard getting used to.