What did she mean by doing this?

[love gremlin]

I know it sounds really trivial and stupid, but I was just wondering what this girl I know meant by doing this!
On facebook, I uploaded a new profile picture! My best friend commented saying that it was really pretty, and I commented back saying 'thanks look at your profile picture though!' and the girl I know liked it. She's a year older than me so we don't know each other very well, but we've spoken briefly before. I was just wondering what she meant - was she being sarcastic? Sorry it sound so pathetic! Thanks!

[Jemma]

Maybe she just liked your comment? Or photo? One of them xxx

[LOL]

Hey,
I think she might just have liked it just to like it. She might want to talk to you more now, but I wouldn't think too much about it. Its facebook, and facebook shouldn't rule your life. Stay strong

[kool aid]

it is a thing people do these days is it is pretty much a joke