"Because there’s something I don’t understand, and other people do understand it, and they won’t explain it to me. That makes me a little bitchy. It’s kind of a fundamental personality thing."

Yes! Perfect line. Lovely story with Daniel in puzzle mode and Paul being wonderfully supportive. I also have a soft spot for stories where Jack is the one who understands his sexuality while Daniel considers himself straight, so thanks for adding another one to my list. :)