Answer her

"I want to fuck you..."

Sam purses her lips, nodding slightly. "Get the fuck out."

"What?"

"I said," Sam glares at Ethan, "Get. The. Fuck. Out."

Ethan stammers for a second, not understanding, "Bu-"

"GET THE FUCK OUT!"

Half stumbling backward, Ethan runs out of the room and back down the stairs. Collecting his shoes, he doesn't put them on, running out the door with them in his arms.

He puts a bit of distance between Sam's house and himself, wondering what the fuck that was all about. Sam was giving him mixed signals. VERY mixed signals. Why did she invite him in? Why was she so angry? Why confront him like that?

Ethan ponders these questions as he makes his way home, and they haunt him as he lies in bed, wondering what the fuck he did wrong.