Thankfully I wasn’t drinking anything when I read that, coz if I were it would have ended up all over the computer screen when I LOLd! 😆
I don’t think that he’d have accepted any alternative option she came up with. He hated her guts and didn’t trust her, so if she’d told him he could escape through a magical tree, he’d have thought it a trick that would kill him, and wouldn’t have done it. In that moment when he resolved to create that curse, Blue Fairy had no hope of ever stopping him or convincing him of another way to go about it.