Her anger demands satisfaction. Removing the stimuli isn't go to neutralize it but will make it worse.
Minnie won't break into the room and just kill her either, especially with Jr around. No, she's a actress. There will be flare, drama, and a point other than her sword.
“Salvation comes with a cost. Judge us not by our methods, but by what we seek to accomplish.”
"To punish and enslave..."