Most improvisers are so afraid of being cliché or “repeating themselves” that they try to avoid archetypes and typical relationships.  Maybe they’re thinking, “You’ve seen one lovers-getting-together scene, you’ve seen them all.”  But these are the stories that audiences crave to see and hear the most.  If this was not the case, nobody would know who Shakespeare was and movies would never be remade.  Just because you did a scene last week wherein you played a character who wanted to be respected by another character doesn’t mean you’re cheating or being a bad improviser if you play a character this week that is seeking respect.  Human emotions are not limiting.  They are our palette.  Primary colors are limiting only to the unskilled painter.