Well

Well, tell me more about your plans for Mary. There's something else, as well: Cass is a bit pissed off at Mary for the whole "nearly asphyxiating her lover to make a point" thing. It also shows a bit of a pattern: Mary "knows what's best for everyone" and takes it upon herself to impose it. It may even be "for the best", but it's a bit beyond the pale. Think Cass could get involved in this conversation?