The most interesting reaction to me was Rumpel’s. His ” I did nothing” really was chilling to me, the same way Cora’s “I’m not wicked” was. In contrast, you have Snow who feels guilty, despite having quite easy rationalizations for her actions.
I can’t help but wonder also, if Rumpel looks at Regina with resentment/bitterness that she could have been his child? You can say that Cora chose power, and she did, but she also chose the possibility of a child free of some magical contract.
Does Regina know of that history? Did she overhear any of that conversation?
“If I had a world of my own, everything would be nonsense. Nothing would be what it is, because everything would be what it isn't. And contrary wise, what is, it wouldn't be. And what it wouldn't be, it would. You see?” -- Lewis Carroll, Alice's Adventures in Wonderland & Through the Looking-Glass