Ha. She's more of a proper villainess in this one. None of what the prince levied against her were false charges, it just so happens that the prince was a cheating asshole. She didn't really have a moral high ground other than the fact that he cheated on her, but really, that's enough.
"It can't be helped." was just his stupid way of ducking responsibility. You can't help falling in love, sure. But that doesn't mean there aren't consequences for everything else you do in pursuit of love. Rather, if there's one thing that can't be helped, it's enduring the consequences of responsibility to get your precious love.