YMMV / Outlander S 7 E 6 Where The Waters Meet

• William agreeing to look the other way while Claire and Ian escape in repayment for Ian saving his life and Claire saving Lord John's life is very similar to season 3 when Hal Grey helped Jamie escape back to Lallybroch to honor the promise Lord John made when Jamie spared his life in season 2. Despite Jamie being a high value Jacobite target and Hal being a commanding officer in His Majesty's army, Hal felt it more important to honor the life debt the Greys owed to Jamie.
• Claire telling Jamie about William mirrors the scene in season 3 where Jamie describes William to Claire.