Green flags str8 men I'll spare during the purge

I only went to my bed as usual... But when I opened my eyes, I was inside a romance fantasy novel. And not just as anyone, I'm now Ludia Mertens, a tragic extra who gets executed alongside her friend... All because that friend was obsessed with the Crown Prince. To avoid that doomed ending, I must stay away from the Crown Prince at all costs. "Yesterday, you told me, 'Prepare yourself tonight.' What the heck is going on?!" But no matter what I do, the Crown Prince keeps showing interest in me...