You are reading WAY TOO MUCH into the situation. CHILL OUT.

The guy at her martial arts class or whatever it is may be in the military, and she may have LOOKED AT (that does not mean she masturbated to it) "military porn", but that does not mean she is thinking of THAT guy.

Maybe she has sort of disciplinarian / authority figure type sexual attraction / fetish. I don't know, but maybe you could act I don't know strict or dress in a uniform, she might have some sort of fantasy that you could be involved in for her.

It was a search term in google. If I was judged for what I search for on google, I would get the death penalty!