"The one that got away" is a horrible feeling, whether it's a friend, a lover, or an opportunity.
It always feels better to know that you did all you could on your end. You might not get the resolution you want, but you WILL get a resolution.
It's like Schrodinger's cat- while the box is closed you'll never know if the kitty's alive or dead. Open the box and find out. (And for god sake, if its dead, don't touch it. That's how you get diseases).
Good luck. Cheers.
-Tegan