: Robin quickly realizes the truth—Barney’s initials are "B.S." for a reason, and he lies about everything. She briefly considers running away with Ted, who firmly refuses, telling her he is "not that guy anymore". The Meeting: Robin and The Mother
Lily vows to always tell Marshall when he has green stuff in his teeth. [S9E22] The End of the Aisle
They commit to a lifelong process of "updating" their vows as they grow and change. : Robin quickly realizes the truth—Barney’s initials are