Eventually Erica says, "OK, I have to go soon, so what's your decision?"
You say that you are sorry, but that can't do it, there has to be a better way.
"Then enjoy your week with Kara...." she teases, giving you a big smile.
"Maybe I'll make you the same offer when I get back, and we'll see how much resistance you have then!"
You glumly think that she's probably right, it will be much harder to resist Erica's offer after yet another week of teasing, especially from Kara.