The Englishman and I exchanged business cards, wished each other well, said goodnight. As soon as he was gone, I felt a tiny tickle of excitement in the top part of my stomach. I was alone, and that tickle was my body’s way of telling me that I was happy to be alone again. Was it typical for me to feel excited like this after a seemingly harmless chat? It was. It’s always been this way for me. Once, after a business meeting in a hotel barroom in Vancouver last winter, I stopped off in the lobby Men’s Room and caught a glimpse…