I absolutely agree with gd that the path for Bets is to do and say nothing negative to MW. My FIRST point was that she was shouldering the blame when I thought it was equally MW's. Either he was thoughtless or he was controlling.The thing about a conflict avoider is that they do find other ways (passive aggressive) to GET YOU and then maintain that nice guy image.
My SECOND and MAIN point was that she had responded MAGNIFICIENTLY by CHOOSING a DB path that would bring her closer to a positive goal rather than HASHING it out. So the BEST revenge for Betsey, was to live well and right! (...bath, bubbles and good book!)