If it's any consolation, I had an old hook-up whom I got along with so well that we spent most of the time talking about our love of efficiency and spreadsheets, she had to assure me multiple times the sandwich I made was the best she'd ever had in her life, and generally had an incredible time. She had to leave early to get picked up by a friend, and kissed me in the entranceway to my apartment, not wanting to leave so soon. I sent her my caramelized bacon rub recipe and later asked if she was still in the area, but she never got back to me. I think about that encounter from time to time. I don't think I'll ever know why she never responded.