Complex sentence: She had some more intrigues to develop and a passionate love affair with her brother's nemesis before she came to a bad end in the final miniseries when all her bad deeds were revealed, her brother cursed her for them and her husband divorced her.
Split into simpler sentences: She had some more intrigues to commit and a passionate love affair with her brother's nemesis to do. But the (actually) final miniseries had a bad ending for Ashton for all her bad deeds were revealed, her brother cursed her for them and her husband divorced her.