Season 3: Episode 2 - We're Not From Here

We're Not From Here: Now that she has spent some time at home with Gael, the hunky Argentinean guy she met while on vacation, Robin begins to realize that he may not be such a perfect fit in her real life. Ted and Barney, however, see Gael as a chick magnet and pose as foreigners so that they can meet more women. Unfortunately, their plan backfires when they realize that the women they attract when pretending to be tourists aren't actually from New York themselves. Meanwhile, Marshall and Lily have their first fight as a married couple.