Hi Will. Long time since I've seen you post. I don't know if I can say I feel the same way but I can relate to those questions. My situation is different because I have family. A large family. And friends too that I could spend holidays with. But I choose not to. I just can't. I haven't spent a Christmas w/ family since my mother died and I'd pretty much stopped going to Thanksgiving before that. An explanation for that would be complex but it isn't really necessary.
I do get the questions too and the questions are uncomfortable. I think I understand the motivations for the questions though... people are curious and talkative and they probably care. It's human nature. The questions are still tough to answer. An honest answer would only make the situation more awkward so I give a vague answer or deflection.
I hope you find some rewarding and satisfying way to spend the holidays.