It's good to end a toxic relationship
Tim and Amy don't get along that well, but Tim stays with her because of their kids.
Tim wants to decide what to do with his marriage.
Tim decides to split with Amy and agrees to split time watching the kids.
Tim decided it would be better to stay in the relationship.
Tim is much happier, and he still gets to spend time with his kids.
Tim continues to be unhappy, and the kids know their parents aren't getting along.