— You're overthinking this. When your dog dies, you don't make a list. You bury him, plant a shrub on top, tell the kids he's running around a farm, and move on.
— That's actually a very apt metaphor. My failed marriage is like a dead dog. But it serves as fertilizer for the shrub, which represents my new life. So if I try to revitalize the marriage... You know, digging up the dog... then I'm killing the shrub, which is me.
Explanation:
Berta explains to Alan that he doesn't have to to repair his ruined marriage.