Responses

She's not in love with him.
Gaspal and Tristan aren't just going to let her go. Gaspal needs her summoning skills. Think also of how her father feels about her engagement. She cannot get out of it with her own power.
She wants to enter into a mutually beneficial arrangement with the Argentine, who's looking for a partner that doesn't love him.
Her revenge is satisfying but honestly I’m very disappointed. I thought she would become cold and empty and the Claude dude will fight for her love but it turns out meh... She likes Claude and wanted to marry him, even to propose him while the dude is someone who is actually ‘cold’ (but not empty, he has his own reasons to not getting married). Don’t get me wrong, I’m not hating on the story, it’s just not what I’ve been looking for.