Why don't you reach out to her? She may see you.
If she does, she may have changed and not be that person any more....Or you may find that, in the past year, you have made more of her than she actually was.
Or something new will happen.

Or simply email a "hi how are you doing" kind of note and see if you get a response...if not, then let it go.

At least you will get some closure