I've long vented to a lot of my friends that my biggest pet peeve is inconsiderateness.

Like the little things that show you just do not think about how your actions will/may impact people around you, those things really bug me. To me, they show that you're a selfish person who just genuinely doesn't care about other people.

Yeah, it makes me a judgmental asshole in a lot of regards, but I'm willing to forgive once in a while mishaps, but I think people who consistently show a disregard for other people are selfish people. If you regularly "forget" to care for other people, it's because you don't.

With that said, I feel the same as you. It isn't all my friends, though, just a few. But they suddenly seem perplexed that I don't want anything to do with them, but it's like...they've known for years being inconsiderate is how you get on my shit list.