I don't understand the whole dating thing. I know right off the bat if I'm interested in someone, and I don't want them to waste their money on me and take me out to eat if I know I'm not interested in that person.
If you can't go 5 minutes without checking Facebook on your phone, we're probably not a good match. However, if you enjoy having thought-provoking conversation and aren't afraid of the occasional spirited debate, give me a shout!
People could rationally decide that prolonged relationships take up too much time and effort and that they'd much rather do other kinds of things. But most people are afraid of rejection.