I love my spa. It's me time. It's not for anyone else unless my husband, in a weak moment, decides to join me for a couple's retreat. But that hasn't happened yet.
I've never been in a spa where I've run into others who are nude, and I wouldn't care to be. And I've never been in a mixed sex setting, either.
My girlfriend asked me when I returned from a disastrous nude beach visit if I saw a lot of weenies. I told her I was too embarrassed to look. So if I saw you at a spa you would not be able to get off on my looking at your crotch because I wouldn't.