Sleazy, a couple of things you need to ask yourself before you consider doing anything about this situation
1/ Is she currently in a relationship... one that appears to be stable and happy
2/ Since you said that you are currently in a relationship, is it stable and happy
If the answer is yes to either then you have to consider if she is in a current relationship and is happy why bother, you don't want to mess it up for her as it would not produce good results for you.
And if your current relationship is a happy one are you willing to risk it for something that you have no idea where it will lead.
However if she is not in a relationship at this time and yours isn't truly happy you might want to consider trying to meet up again.
You never know, what didn't work the first time around (maybe just bad timing) might work better the second... after all you are both older and more experienced in life now so things could be different.
Or like has been said here maybe just seeing and talking to her again might make her a little more life sized and finally put to rest the feelings you have for her so that your mind and heart will be open
for someone else... you will be able to have a relationship with no reservations.
Just my opinion. Take it for whatever you think it's worth
