He wants to open the marriage so he can pretend he hasn't been cheating on you. Like another poster said, if an open marriage is not what you want, you need to leave, because you're already in one.

Using your words to communicate your needs is never wrong. You did nothing wrong, as far as I can tell.
Maybe your Master was under some sort of stress that you were unaware of, but it sounds like they overreacted. In their place, I would apologise for chastising you like that.

Definitely it's a reward. If I'm going down on a woman and she squirts in my mouth, she can count on a lot more oral activity.

At least you're talking, that's good
You said you have a lack of desire for sex. In general? Or just the kind of sex you've been having? People's desires can change, or even go away over time, that's completely normal, and no matter how much you talk about it, there may not be a resolution.
The Read more… most important thing for you to remember is that however or whatever you feel, it's okay for you to feel that.

Even in vanilla relationships it's normal to feel guilt for a while after you've made a mistake, even if you've been forgiven. It means that you regret your actions, and you've learned from your mistake.
That's what I think, at least. I imagine your Sir is proud of you.

Great minds blah blah blah lol