@mostlyclueless I say that because you didn’t say one single word about his personality, nor about how much you like him, whether he was funny or smart, nothing about him at all. The entire question revolved around sex and the disbelief that he turned you down. So either that’s all you were in it for and maybe he felt a little used or offended, or you thought something else, like the best way to keep him around was with sex.
Let’s turn the question around, and I think the possible answers might be more obvious:
Why might a girl decline to spend the night?
It was our fifth date. We slept together on dates 3 and 4. Girl was affectionate and things seemed normal throughout the date. (some additional detail here based on your response to Jeruba) At the end of the date, as I walked her to her door I started to say something like, “So, do you wanna… Have a seat / have a drink / and-or stay the night wink wink.” She shook her head and said she had to get going.
Any hypotheses? I figured if she wanted to tell me why she would have just done so. I’m stumped.
Does it look a little different now?