Happy endings do not last long for Robin. She will be off crusading for "truth, justice, and her idea of the American way" leaving her family once again. The show can always recast Patrick Drake if need be.
I would love to see Sam have a nervous breakdown once she truly realizes that she is the blame for Patrick's departure. Let her choke on "Jason deserves to know the truth." I just cannot stand the character.
Are there any "good, law abiding" characters on the show any more? I can't think of any. Maybe they should rename the show to reflect the attitude of bad guys/villains/liars, etc. deserve happiness, especially at the expense of others.