Can I point out how ON POINT this was with Irene’s character as a dom?
Let’s set the scene.
Sherlock gets the final word with her in Mycroft’s study. He’s all “Nope, sorry, you’re going to jail LATERZ”
Irene, as a dominatrix, is a power role. Sherlock said that. She’s in control. She needs control of Sherlock, especially after he crushed her so badly.
Sherlock ALWAYS has to have the final word.
So what does she do?
Sends him a text just as she’s about to die.
The ultimate final word. The ultimate power play.
The sign of a good dom is to be able to find that one THING that makes a person tick or gets them off, and if Sherlock were a sexual creature that would have gotten him off so hard. Morbidly. But she had him. She would have totally had him.
In character to the end. Haters to the left.