

As I mentioned, I associate your approach with the idea of a "class enemy". This comes straight out of Marxism and was a popular approach around the turn of the century -- the XX century, so more than a hundred years ago.
Marxism (and in particular the whole idea that social interactions are defined by the class struggle) has been pretty much discredited by now. Outside of some diehard pockets (in academia and hard-left organizations) no one really tries to claim that the class struggle is what drives social relationships. LW isn't particularly Marxist, either.
So that's why I was surprised to see what to me is an old and unpopular idea here -- and moreover, see it applied to a girlfriend/boyfriend relationship, not even to employment or something like that.
Can you argue the content? "Old" and "unpopular" are weak refutations.
Classism is part of current politics, as well as my personal experience.