How old are you? Because if your nickname is a correct pointer and you are 28, you need to read up on the material. Your being funny is worth exactly nothing in the date world. A woman who laughs at your jokes might be legitimately attracted to you but I'm willing to bet any sum it's not to your jokes. Your jokes are funny because she is attracted to you, not the other way around. It's a subtle difference.
Anyway, as other people have pointed out, pointing out one example that is supposed to debunk a whole theory falls short because it ignores dozens of other variables.
The reason this happens more often in small towns is because the pool to chose from is smaller for women (for men too, of course, but this is not the point here).