Well I can see why some would rate this so highly. Ie it is all to do with listening and in a relationship, one of people's deepest desires is to be listened too. That's why people yell in arguments (or one of the reasons), because they want to be heard and they feel you aren't listening to them. In fact, not listening to someone is one of the major things which causes fights and anger and even relationship break ups. To me, listening is very important and 5 stars. But in this context, 'A natural sense of when to be quiet' can sound like 'you know when to shut up.' Well maybe this is sometimes a desired quality into the partner who wants to be the boss ie they want the last word. Someone who just wants to boss you around and desires that characteristic of you shutting up, is not an ideal characteristic to have. But it is still good to be diplomatic though and do things like not yell out and be a smart alic when your partner is on the phone! Or to know when not to say something!
