I treat my best friend like she is my master.

I am a male, and my best friend is female. She is also my room mate (me, another guy, and her). I like her and have told her so, and she doesn't feel the same about me. I have accepted this and am looking elsewhere for that kind of relationship. What I can't seem to stop doing is acting on the fantasy that I am her slave. I do everything that she says. I go out of my way to help her. I do more than my share of household chores. She is a priority when social interactions conflict. One time she jokingly called me her b**ch and yelled at me to make her breakfast in bed and I totally did. I got really turned on. Does any of this make sense?