I can't answer entirely, because I wasn't the one who filed.
I will say I might fit some of the extreme makeover though, since the divorce I've lost 200 pounds, picked back up many of my sports from high school (well, except marching band and jousting), finished my conversion, landed a job in a great field, and basically become a much happier person. I look, act, and feel much more like the person I always expected to be. I even (and this is a big step for an Irish redhead who might be liable to hold grudges now and then) try to look on the fact that without what happened I would not have my wonderful son.
I think a big part of it would depend on why we divorced in the first place.
I'd enter into it cautiously!