He definitely screwed up. He did something awful by forcing this on her without her consent. He needs to truly come to terms with his actions and find a means of proving his sincerity.
She, too, has been an ass in her own way. She really hasn't given him an opportunity to talk about everything...
I see a lot of comments about the corset. We've clearly seen she wears undergarments (bath scene). The corset they were referring to was the waist-training type (because of the comment of a broken waist). But in the end, this is a fantasy world. Who cares what they wear?
Aw man, I was hoping the wizard would be her brother all grown up. It would have been so sweet, him learning magic just to give his big sister another shot.
Oh well.