Let's not do this again.

"As your professor, let's never mention this again"

"...Å faen ingen. I get an O in my N.E.W.T for this right? Wicked. I'm out of here. See you at breakfast."

 
"You should probably go.... before my husband comes home and kills you...."

I should get going then...? 

I don't know you... why are you in my bed?

"What's with all the dog hair...? The cat's gonna be thrilled... But, yeah, that was really good. I didn't bite you, did I?"

"No, but I probably bit you. I have but one question; why are you still here? I left, giving you plenty of time to leave."

"Also, if this is my bed, I need you to leave in the next five minutes. You'll scare my child."

OR

"Looks like somebody's gonna die, and it's not me, sweetheart."