I think at this point "misunderstanding" doesn't cover it... he's one of those "you didn't experience my pain so you've never experienced pain" kinda people. He is childish. And yes, everything she's gone through is his fault. I would've maybe taken his side a little and said "well, she should...
For the people who probably haven't realized (even though I'm just guessing as well) I think the father gave her that knife to help her escape. I think the prince was there to help as well, maybe even in love with her. Which is honestly more depressing. But I think it's clear her dad loves her...