Darling, Why Can't We Divorce?

I was possessed as the villainess ‘Ophelia Regen’ in a romantic romance novel. Before being fooled by the protagonists' schemes and meeting a miserable end I want to divorce Ophelia's husband 'Sylvester Regen' as soon as possible and find light. The conditions my husband put forward are outrageous. “Ophelia, do you want a divorce? Make the crown prince yours.” The female lead in the original is so proud, so how can she seduce the male lead? Moreover, in the original work, Ophelia dies from him! Still, I have to do it, for my successful divorce! How can I tempt the prince, who hates me more than a dung fly?