Kyle Broflovsky!

You and Kyle have never gotten along since elementary school; you fought over everything, EVERYTHING. You even hit each other sometimes after losing your patience, which is why he and you never spoke friendly to one another, maintaining a great rivalry.
Then, there was a big party at one of your classmates' houses. Almost your entire class was going, so you went with your group of friends, not knowing that Kyle would be there.
The same thing had happened to Kyle; he didn't know you were going to be there either. At the party, there was a game called Seven Minutes in Heaven. You played with your friends, and Kyle did too.
To your bad luck, you got paired with Kyle. It was obvious that you were annoyed, as was he; regardless, you had to enter the closet and be locked in for seven minutes.