Am I around mean people or am I too sensitive?

I really like my work, but the interactions with my colleagues are difficult. They don't reach out to me, and when I try to chat with them, I'm often ignored or cut off. Honestly, I don't feel like I have much in common with them. To me, they come across as pretentious, fake, and self-serving. I see myself as a genuine and sympathetic person, very different from them. Being around them sometimes makes me feel physically sick, and I feel incredibly isolated.
Am I around mean people or am I too sensitive?
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