the emotional series finale -- and the tears were definitely flowing.The very last episode of NBC's award-winning drama had the tall task of closing the loop on the TV family we've all come to adore, while celebrating Rebecca's life and looking ahead to the future. Simply titled «Us,» the final hour was split among two periods of the Pearsons' lives — a lazy weekend with Jack, Rebecca and a young Big Three and the day of Rebecca's memorial service.Saying goodbye to the long-running NBC drama seemed to be what was hardest for fans, when they took to Twitter to bid farewell to the series after six seasons.«I am not okay #thisisus,» one person wrote of the series finale.«How are we going to not have you guys in our homes every week :(.