Your crew doesn't like outsiders.

aka the How I Met Your Mother lot

Significant others don't last long in the lives of the HIMYM friends. Ted's recent engagement to Stella ended supposedly for reasons other than the fact that she lived in New Jersey and the NYC-based crew had reservations about her. Remember the episode where Ted brought his date to meet everyone only to realize—through the "group" lens—how annoying she was? Even the married Lily and Marshall spend most waking moments with their mates, and we mean that in the British sense of the term. If we learned anything from Friends and Sex and the City, friend clusters eventually splinter when one member moves to Brooklyn. Better start running your game before you're left group-less in a defunct sitcom.