Drew could have fallen asleep right there, warm and safe (for once) against Dean's chest.
But he couldn't.
He stood up, wiping at his face, the drugs in his system flip-flopping his emotions about. "No, no." he said, because the last thing he wanted was his dirty person in Dean's flat. He didn't want anymore ruin than he'd already caused.
"No, thank you, I've got a hotel room booked... I should just go back." That wasn't strictly true, but Dean didn't know that.