What should i write in my ex's year book, who cheated on me?

Im sorry i know this is silly but i really want to get to him. I was thinking of a profound quote or something. something witty, but not really mean, but that really stings him. Thank you!

2013-05-07T08:41:17Z

something not obvious, but thatll make him think. it needs to have hidden meaning.

?2013-05-07T08:28:21Z

just say u hope he has a good summer, think about it, if he cheated on u and u act like nothing happened then if it doesnt get him "confused" then maybe he just doesnt care, my ex did it to me but she was cheating on me with everyone =/ lol i was rly confused bc she had a smile on her face and talked as if we have been friends for years