S85 my point here is do I need to stay away from anything that points blame on W. How honest do I get?
You absolutely do not want to assign blame to W. She will just assign it right back to you saying things like "You were never there for me", "you were emotionally absent", "you forced me into this". Keep in mind you're dealing with a WAS, NOTHING is her fault. YOU are to blame for EVERYTHING in her eyes. So yeah, no blaming. You want to present a united front for S.