Seesaw, it isn't just you, I am one of those people who gets that too.
In the days before internet dating, we mostly met up in pubs or night clubs, and yes somehow I always wound up with the guy who seemed perfectly comfortable to quite graphically express what he wanted to do to me.

Now I was often quite conservatively dressed for a pub or club setting.
I often was on coat or bag duty at the table we (my friends and I) would be sat at.
I was not flirtatious if anything I tend to speak to guys as they speak to each other.
And yet I still manage to attract those with Zero filter with regards to their sexual desires. Wether I was included in these or not.

I still get this now, and I have no idea why.

All I can do is offer my sympathies.