How I Met Your Mother Season 6 Episode 18
Overview
When Barney starts to have real feelings for Nora, he worries that something is wrong with his heart. Meanwhile, Robin starts dating a guy who acts a lot like a dog.
Director: Pamela Fryman
Guest Star: David Henrie, Lyndsy Fonseca, Nazanin Boniadi, Robbie Amell, Suzy Nakamura