You are going to a concert with your best friend and your significant other. You have also managed to get backstage passes. The catch- you could only get 2 passes, so only one person will be able to go backstage with you.
This is for a *major* band which both of them have been fans of for years.
What do you do, oh WHAT DO YOU DO??
Are there any special factors to consider, such as the length of dating time vs. friendship time?