Is it just me

Does anyone else find it weird when someone else uses your washcloth in the shower or your towel to dry off? It doesn’t bother me if my fiancé uses it but anyone else is weird to me. I’ve expressed this many times and even hang it a certain way so I know if it’s been used so I can get another one. But I swear my mother in law uses them every time! It’s so weird that she would want to use something that’s been in my ass crack! We have a hundred towels and wash cloths, why can’t she get her own? We stayed in a hotel for a couple months last year (between houses because our landlord was selling our home) and she kept grabbing my washcloth out of the shower and washing dishes with it 🤢 I really don’t get it. Why does she only use mine and not her sons. It freaks me out 😂