What does it mean when someone is always asking your friends about you?

[.Jezebelle.]

I found out that a girl asked my best friend if he still spoke to me. At first, I thought that she wanted to date him and was checking to see if she had any threats but I later learned that she asked another guy the exact same thing.

Then, I posted about a man from a tv show on a friend's facebook. That same girl called someone to try to figure out who that guy was.

The only thing I know about this girl is that she thinks her boyfriend likes me. Other than that, we don't associate.