It's interesting to compare Lauren Graham's acting in "Farewell My Pet" and in the last episode. I think, although Christopher wasn't my favorite character on GG, I appreciate DS's acting and their cooperation as actors in the "Farewell" scenes. Graham's play in "Farewell" expressed all the feelings very genuine (pathetic, but "heavy" as well), now her play is "light" to express all the comedy aspects and to show how different the relationship to Luke is compared it to the with Christopher. She's just a good actress and deserves more.