Why do girls always like guys who show no interest?

Girls always like guys who show no interest/ignore them , What do you think abt this ??

I dont know man ... I think it is cause we want what we cant have ... but my b/f shows me a lot of attention ( I loves it )

im not really like that, I like guys who like me back. well, I dislike it when a guy once liked me a lot then dont anymore lol

The chase.
I agree with the 1st answer, we want what we can't have.

haha I pleed the fifth ;]
by that meaning I always have guys on ma nuts.
[haha always all over me]
& it gets old... & when a guy looks like hes not intrested I set a goal to myself & say ill get him too... DONE DEAL I dont even have to try & I don't know for me guys are just a competition. lol
im f*cked upp but what can I say.