"My BFF's guy is a cheater, and she doesn't believe me!"

You Said:
"Last weekend my BFF was out of town, and I happened to be at a party with her boyfriend. I saw him flirting with this girl from another school all night, but I didn't break it up. THEN! I went outside for a breather and found them making out by the pool. He asked me not to tell my friend, but I obviously did -- and she doesn't believe me! Should I get evidence?"

We Say:
Well, if you were Nancy Drew, we'd recommend grabbing your camera phone, hunting down this sneaky boy, and catching him in the act. But you're not -- so don't stalk this loser. Even though you don't have any physical proof, try to reason with your girl. Try asking her these questions:

1. How long have you known and trusted each other? (Probs forever.)
2. How long has she known and trusted this guy? (Probs not very long.)
3. Why would you lie about this guy cheating? (Remind her you're her BFF after all.)
4. What does her gut instinct tell her? (It's most likely screaming, "Dump this dude!")

Hopefully she'll realize that you've got nothing to gain from their break up, and you only want to see her happy (and w/o this fool).

"Is he ever going to ask me to prom?"