At this point, Ambrosio is super [BEEP]ing messed up. In order to gain access to Antonia, he goes to her house in the middle of the night. Just when he is about to violate the sleeping Antonia, Elvira walks in the room and quite understandably, flies into a rage. When she says she will ruin him with his secret, he sees no choice but to kill her.
And for once, he feels bad about something. As if murdering someone is worse than breaking your vows. But then Matilda just waltzes in and convinces him that he did the right thing in protecting his secret. That really says something about the amount of power she has over him. It’s so messed up. I hate both of them.