yup
it would backfire

besides

it woul dbe better to save that one and use it later

like when she is trying tobe all buddy buddy and callsyou for advise (puke for real they do) and then you could relate it back to that incident and when she dropsher jaw, you can make your eyes all big and innocent and say

oh...I thought for sure he told you

gosh

I'm sorry

(boink boink boink with the eyes)