As someone who has developed extreme smell sensitivity due to a disorder, not wanting to be around other people because of the way they smell is something I totally get.

People really do not know what they smell like. And a lot of people do not smell good. Not just because of some lack of bathing either, maybe some other choice, like they really love spicy food and you can smell it on them or they’re wearing what they think is an attractive perfume and is definitely not.