Be The only Single In The Group

It's always tough to be the third wheel, but if you follow these tips, you will survive!
Let the couples have their alone time. If you were in a relationship, you wouldn't want a friend tagging along with you all the time either.
Expand your friendship boundaries! Go above and beyond when making new friends. Mix & mingle with other single people. Being around couples too much will just make you feel bad about yourself.
Don't take sides when couples are fighting unless you know both sides of the story, and even then, try and stay out of the fight. While the couple may eventually settle the problems between each other, they might still remember who you sided with during their conflict.
Don't feel sorry for yourself. Just because everyone around you is dating doesn't mean you should be too. Think about the couples around you. Is their relationship really what you desire, or are you just jealous? Don't get into a relationship just for the fun of it. You'll only end up hurting others and yourself.

* Be friendly! Smile at cute guys/girls and don't be afraid to make the first move!
* Don't try and steal your friends' boyfriends/girlfriends. Likewise, don't try to ruin any relationships either.
* Talk to your friends. Just because they're in relationships doesn't mean they're not your friends anymore. If possible, discuss common topics such as movies, television, sports, etc.