What is it about tweeness?

I was trying to figure out why something annoyed me so much and I figured tweeness, but that just turned my attention to why tweeness is so annoying. Almost enraging, really? It's a powerful revulsion that's difficult to parse. What is the mechanism at work? Is it unwittingly treading on some vestigial instinct, like, idk, conglomerations of touching spheres/circles? Or is it somehow associated with trauma or something?