Just make sure your date understands that she cannot receive any acts of foreplay unless she wants to risk getting mono as well. Your going to have to stick to receiving oral sex and doggy style. Sorry man.
On a more serious note, my little brother just went to prom last week and his best friends dad died at about 2 AM. Ruined there night, and I felt terrible for all of them in the group. It could be much worse, so make the best of your night and let's all be thankful for life!
"For me, my family, my friends and skiing, that is for me. That's my life. The joy I get from skiing... that's worth dying for." - CR Johnson