These kinds of things strike me as generalizations that most people can fit to their personalities. "doesn't give up but who never has any fun" is like me but I've been very irresponsible at the same time and only like me at certain times in my life.
"The one who has lots of fun, but who never takes responsibility for anything," describes my W's youngest brother but not my little sister AT ALL.
I think it's projection. Sorry to be the skeptic, but I don't think it does much good. I think people start to fit themselves and others into these niches and the explanations for them are much more complex.
I prefer action over explanation anyway. What am I going to do right now to help fix things and what are my long term goals? It becomes too formulaic IMO and working on relationships is too dynamic to accept a formula to fix things.
Just an opinion. Use what works best in your situation.
~Mark
Me: 38 W: 34 Together: 9yrs 1st M: may '03 1st D: april '08 1st bomb: june '08 remarried: oct '08 2nd bomb: aug '09 --(W asked for D one week into 3 mo. trial separation which was meant to save our M)