No. You leave it alone until one day she says "hey I remember you, yadda, yadda, yadda"

That's when you pounce. You pounce, but you pounce casually. "oh yeah... (ellipses for held effect) we had some good times *wink here* " Then hit her with the "hey I should grab your number so we can catch up some time" Act like it's no big deal. Then sort of give it the good ol' papa smurf smirk. Walk off like a boss, even though you work there. Still do it for the effect. Your manager will respect you more for doing so.