Hey Guys,
First sorry for my english and here is my sitution:
I am in college and I've seen this tall hb 9 a lot, she noticed me too.(I am in shape and she is in the team of my college-sporty girl). But didn't have a chance to talk to her until last thursday at a bar with her friends.
I approached her and wanted to tell her something. She was the one started to talk to me and telling me that she sees me everywhere etc... When we were shaking hands, she didn't let my hand go for 1 min (the longest time anyone in my life grabbed my hand). She gave me huge IOIs but it was really hard to talk to her in bar since it was so loud and it was near the dance floor. Anyways, I said I'll for sure see her again at college and we hug each other and I left her.
Anyways, I searched her name on Fb tonight and just realized she changed her profile pic on Sunday with a guy that I've seen with her before while kissing ... the guy also changed his profile with another pics of the two.
Anyways, do you think it's a waste of time to approach her next time and it's a done deal? The only reason I am asking is that she is sexy and I got huge IOI from her.

You got nothing to loose go for it!

Honestly, you are kinda right. But the thing is my time is short (almost end of semester) and I can focus on other girls. I was thinking about her since thursday bcuz I am attracted to girls who are attracted to me and she showed she really likes me. The thing that bothers me the most is that maybe she was disappointed with my reaction ( maybe I could do better like at least get her number etc..) and decided to forget me...