<P> Lily insists that Barney genuinely does want to settle down and get married, but Barney denies this . Nevertheless, Barney goes to the brunch to tell Nora about his feelings; he enters the restaurant, seeing Nora with her parents, and makes a heartfelt speech . Nora forgives him, and introduces him to her parents . However, the scene turns out to be a figment of Barney's imagination, and he leaves before Nora sees him . </P> <P> The episode ends with a flashback of an incident involving Marshall in 2006, which explains the event Barney referenced when blackmailing him . Marshall drops a calzone while walking on the street, but picks it up after ensuring that nobody is looking at him . As he takes his first bite, however, he sees Barney nearby and slowly walks away in embarrassment . </P> <P> "A Change of Heart" first aired on February 28, 2011, garnering 9.24 million views on CBS and a 5.6 / 9 Nielsen rating . In Australia, the episode aired on May 5 to an audience of 0.671 million households . </P> <P> Donna Bowman of The A.V. Club gave the episode a rating of A −, criticizing the episode for being "sappy" but describing herself as "impressed" by the twist ending to the scene with Nora's parents . Angel Cohn of Television Without Pity graded the episode at B − . Robert Canning of IGN gave the episode a rating of 8.5 out of 10, saying that Nora was likeable and that he enjoyed the interaction between the friends, who even managed to make "silly filler plots" enjoyable . </P>

How i met your mother a change of heart full episode