I don't think that tension is a necessary component of a vegan and nonvegan eating together, at all. I'm sorry if you had a bad experience but that's not inherently the case, in my experience eating with nonvegans.

That's honestly encouraging, thanks :)

Yes, I can accept it :)

I understand... but just in case it made any difference, there are usually alternatives I can eat in most situations, even so we're eating the "same" foods but I just get the plant-based version. Like for example, a non-vegan can eat meat while I eat a plant-based meat. Or they can have cow's milk latte while I have oat milk latte. I've done this a lot already and it usually works well...