[blushes more] Then, I really should thank you. [she squeezes his hand gently

but then she notices the frown] I'm--I'm sorry. I shouldn't have brought up Joffrey. In the end, I did get lucky. I was only his for a day. [and there's a story behind that, but not one she feels prepared to tell just yet]

Then, I will keep your secret for you. It's the least I can do.

[Margaery nods and looks a little--proud?] Good.