I agree with laziness being a factor but I sometimes wonder if the laziness is really just an inabilty on the part of the WAS to face/admit their own problems, faults, contributions, etc. People with NPD are literally incapable of doing this and there are many NPD amongst the ranks of cheaters. I think many people who walk without serious effort to improve the R (counseling, books, etc.) fear the honest self-anaysis that working on the R would entail.
