it happened to me, the year gap was 4 years, I met her again, eventually we had a relationship that lasted only for a short time, still can't forget her though, and I am still in pain. I wish i could really help but i would just say Good luck.

It's pretty simple. You either ask her to hang out and try again, or you keep your distance.

Hang out with her more. See if she's the same person and all that. Then after reconnecting a little bit, admit to her that your old feelings are coming back, and that you hope she doesn't mind. This will give her the hint that you want to try again, but you're okay if she doesn't want that.

If she's interested in a relationship with you, she'll let you know from that point. Your feelings will be out in the open, and then she'll have the opportunity if she wants it.

Girls are the most confusing creatures on the planet. One second we know what we want, the next we don't. Just give it time, give her time.