In so many ways, this episode had (I think) some major storylines setting - first the story of Martin and Samantha is developed further as those two struggle with how to continue with their relationship and also Vivian has some very hard news herself.
But more than the little more focus on char, I loved the story.. The way how it was presented, how little things got one woman who tried to do so much good into trouble.. And those kids. I really loved the way those two were portrayed - not only the acting, but the story, the emotion it brought. Beautiful.