A snowstorm before Christmas could give Wes Cheng exactly what his heart desires. Let me be clear: I've been friends with Caitlin Ng for more than a decade, and I've had a crush on her for just as long. And I've known, all that time, that I wasn't her type. When we met, we were both studying computer engineering at university. She was near the top of the class, and I was in danger of flunking out. Now,...