> “I’ve been feeling a low-level tension between us, like maybe we’re quietly annoyed at each other but trying to stay polite. Is that just me?”
I'm sure in many cultures, and in many friend groups, this would go over fine. If I said this to someone, they would go into shock. They're unspoken thought would be "wow if he's saying that to me, I must annoy the shit out of him". Maybe not! Maybe that's my own unspoken understanding! But I do think this leaves a "scar" even a small one. "Direct" conversations are not without their own damaging effects. I think part of my social contract is to "deal" with things silently. Maybe in other cultures that's not the case.
If someone said that to me, I would be happy to have that conversation, but I would be on pins and needles around that person, and possibly overthinking how "annoying" I'm being, and I would have at least a small amount of resentment for the person saying it – "I have lots of friends I don't annoy, what's wrong with this person"