After eight seasons of ups and downs, the Showtime drama series Homeland finally came to an end on Sunday night with an eventful series finale. Once a critical darling, then a punching bag, then somehow an underrated show, Homeland has been through it all. And while the series never came close to matching that incredible, Emmy-winning first season, once it finally disposed of Nicholas Brody (Damian Lewis) the show started to evolve in exciting ways. But whether set in Germany or Pakistan, tackling terror at home or abroad, the heart of Homeland has always been the relationship between Carrie (…