20 friends on new facebook layout?

[Ramona]

On new facebook layout there's those 20 friends square on the left...The ones on the top of the square are the ones we chat with the most, right? Isn't that a bit weird? Facebook keeping track of who we chat with? So now my boyfriend is mad because he is not the first one on that list. It's always some guy i don't even chat with that much anymore, it's so annoying! Is there a way to change who appears there??
It's not random when it's always the same ppl on top of the list...And it's too much of a coincidence that those are the people I chat with the most...I created a separate friend list but it doesn't affect the damn square...