It's not 1:1 the same, but I think the episode "Take me private" from series "Hot Girls Wanted: Turned On", gives a glimpse into that.
It's released in 2017, so more cam-girl than OF model, but it shows a deeply parasocial girlfriend-stand-in relationship of someone that spends a good chunk of his disposable income on that. I think the now common OF model + chatters are an evolution of that has even more tendencies to create girlfriend-stand-in relationships.
Online: watch some episodes by Catfished (or so; there are multiple of these shows; kind of the same) on YT. I saw it on Reddit too.
Offline: I meet many people as I travel and skip company (I have a small company doing emergency software/hardware fixes, so jobs are very short and diverse) a lot and talk a lot with strangers for fun; sometimes we end up going deep in the night over beers and things come out. Usually they are somewhat awkward and lonely guys with the tendency to see women as things; that intersects often with programmers/engineers. These are not even the weirdest things I hear from strangers either.
