I understand honesty, saying "Look, you're obviously screwed in the head, so forget it", but picking on specifically the thing that seems to be the crux of her issue, ie, her weight, well, that just seems like salting the wound for no good reason. I t won't help her, it doesn't make you look good, and overall, it's just bad chi meted out into the stratosphere for no good reason. I understand not being kind, but I don't get why being cruel would be desirable.