I hate doing favors?

I never ask anyone for any favors and I mean never. So, I despise when people ask me for one. People constantly ask me for favors and I end up feeling bad for them. I don't take advantage or expect anything in return even if you offer me anything I'll say no. It somehow makes people think that we can be best buddies. Ugh no! I have no desire for you to be in my circle. We will never be friends. I actually deeply enjoy my solitude. I have a cynical mindset as well.

My question is how to say no without making people get all sensitive and vindictive?
I hate doing favors?
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