I think a lot of the Trek fans who were virgin basement dwellers in high school then entered the tech industry where their social life vastly improved and they moved out of their parents' basement very quickly.
Or they went to college or discovered fandom or became Star Trek writers . . . .
The world is not high school. In my experience,Trekkies grow up, move out of their parents' houses, meet people, and get into relationships. . . just like everyone else.
(Only last week I ran into some college kids who are huge into Trek--and, yeah, they're all dating each other.)