Simi77 I find it very strange before my meeting I have heared people say they couldn't smell each other. But I really thought somone would smell me and give me feedback.
Anyway maybe couldn't smell each other like you said tolerance level or the same reason some family members can't smell us same missing enzymes and perception and the environment.
Like my sister can't smell me and when I asked her recently she got upset. Her exact world you don't smell and I have a great sense of smell.