How to get my husband on my side

I thought I’d finally escaped my hellish life when I died in an airplane crash, but I fell into another nightmare when I awoke as Rudbeckia de Borgia, a minor villain from a historical novel destined to die at the hands of her husband, Iske van Omerta. Surviving with the dysfunctional Borgia family is hard enough, but now I have to marry the man who will kill me! Still, it’s okay, I just have to convince Iske, his family, and all his countrymen that I’m completely harmless! How hard can that be?