<human>: Give me the gist of the text in a nutshell

Not sure if this is appropriate for this subreddit but any advice is appreciated.

In 11th grade I was in love with this girl, I asked her out and she rejected me, so I was depressed for a couple years, I hardly talked to her (I'm not sure how much she knew about my situation) and we went to different universities and haven't seen each other since; now we're juniors in college, both single. I'm no longer unhappy, when I look at a picture of her or think about her I don't feel what I used to, and we'd probably be incompatible anyway because my values and goals in life no longer leave much room for people like her.

But I kind of want to see her to catch up with her and find out how she's doing, I haven't seen her in years of course. She lives very close to me, what should I do (don't have her phone number)? Should I start a conversation on facebook and then ask to meet up in some public space? What should I say and how do I do it without coming across badly and looking like I'm just chasing her again, or looking creepy or suspicious? Will she think I'm just trying to get her back?
<bot>: girl in high school told me no, we're in college now, I want to know how to approach her just to see her again.