@Kim rivers,
He probably doesn't recall what happened when you (was he also) were 13. It was a long time ago. Maybe he's just busy.
As for him showing up in your 6 friends box, it's because Facebook has algorithms that determine who shows up there. A lot of that has to do with how much contact you make with a person. You can also go to your controls (I forget where) and select who shows up there, or change it to 4 or 8 people or whatever). That's all. It's not fate; it's computers.