I understand how you feel, I am a very open person and I don't think I could handle it if I were told to "keep things private". I feel that since a relationship is between two people, it is unfair to demand the other person not to tell. I think each person has a right to talk, or not talk, about it as much as they want. I am very close with my friends, and I would feel it was a betrayal of my friendship to them to not be honest about my sexual and relationship-issues; I know not everyone feels that way, but my friends and I have friendships where we talk open and honestly about that kind of stuff- so I know if I suddenly held back they would be hurt. And I wouldn't want to. So I think it is very fair for you to be allowed to talk about whatever you want with your friends or family. I'd try explaining yourself to your Master and getting him to see your point of view. I'd feel very sad if I had to hold part of myself inside like a secret if I wanted to share it with everyone.

Good luck dear!