18. A Change of Heart (2011)
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.
Release date: 2011-02-28
User rating:
8 / 10
27 votes
Season number: 6
Episode number: 18
Runtime: 21 minutes
Director: Pamela Fryman
Writer: Matt Kuhn
