A "misleadingly upbeat" breakup letter has gone viral. In the letter, the jilted girlfriend gets revenge after she discovers her boyfriend was cheating. The boy in question, apparently, left his Facebook open and got a sexy message from someone who wasn't his lady named Kelsi.

The breakup letter gets the man in question to go on a little mission. It asks him to go on a scavenger hunt to retrieve all his stuff, including clues like "your clothes are where we first met" and "your laptop is where we bought our first videogame together". Well, that's a pretty creative way to get revenge.

The note is penned in pink bubble letters and abounding with exclamation points-- they just serve to make the hostility and anger beneath the surface even more apparent (and hilarious).

Some people online reacted by saying the breakup letter was the most awesome thing they'd ever seen; others thought it was downright cruel. Many posted that it was stupid for the guy to leave his Facebook open in the first place, particularly if he was cheating.

Cheaters never win, I guess.