Another thought- could Chessie have known/suspected DH may have hurt BW and in the early days when DH was on life support, but was afraid to rat him out as the person BW went to hang out with because she was afraid DH might somehow live and then disappear her? It was pretty clear DH wasn't going to make it, but maybe Chessie was scared that *just in case* he did, she better not do anything to inflict his wrath upon her, lest she end up like BW (cause we know CW is all about protecting CW).
ETA: I call BS on BW not wanting to "follow the house rules."(I believe she certainly said this line to Steph and Wally, but that CW was lying.) Anyone can tell there were no rules in that house. BW was allowed to drop out of school in 8th grade. Drug use was rampant among family & friends who visted the home regulary. BW was an adult living at home (well going from home to home) with no job or structure demanded of her. Most kids I know that age, if they aren't in school, are expected by their families to at least work part-time & do something resembling being a responsible adult now that they are adults. Maybe the only thing close to house rules was CW expecting BW to watch or care for her kids while she was high. Perhaps if CW would have instituted some real "house rules" when BW and her siblings were young (and cut the gross family members out of their life), a lot of this tragedy could have been avoided.
