the absolute contrast of garth and becka's wedding ceremony where they don't kiss (where traditionally you would, Gilead values aside), vs. becka and agnes/hannah kissing before the ceremony, sealing their own ceremony/promise of sorts.
In a way, if Becka killing her father for vengeance and telling Agnes "I would do anything for you" was her vow, Agnes working so hard to save her this entire episode, using every weapon in her arsenal to get people to help her was hers. Their mutual devotion there is stronger than the state sanctioned marriage

















