Worried

I don't know if I should share this or not but I really need to understand something. I don't know why during and after sex anytime my husband just smell his hands, he will just put his hands in his nose as if he is scratching but he smell his hands anytime he touched my va**** I asked him why he does that and he will become furious denying it that he was scratching his nose but I have caught him several times doing that, I even tiptoe right in the bathroom and he was just doing that, I don't know what to do I have even lost my interest in sex.

Can someone tell me what is that, is it men's character or his habit because this is making me not go near him and it can harm our marriage. 😟