Don't worry about it. It isn't you buisness.
Make a funny comment about how he can't keep a girlfriend.
Go up to her and ask her about this love triangle.
Tell everyone that you could have stayed with someone for more than a week.
Try to impersonate a person who has eaten to many brownies.
Tell eveyone that everyone should like both of them and non of this really matters.
Pick the side with the least amount of people. You want a challange and a fight.
Sit down and hope that no one notices that you didn't say anything.
Tell everyone that the Packers are the best team ever (because your parents told you that you weren't supposed to lie)
Yell at anyone who thinks that the Packers aren't going to win because the Packers are your team and (duh!) they are going to win!
Tell everyone that the Packers are going to win...
Make a funny joke about the opponents quarterback.