Quick question re: the second point. Do you both have to be committed at the same time? The reason I ask is because of what Gwyneth Paltrow once said re: divorce. It was something like (and I think she attributed it to someone in her family) - "The way to stay married is ensuring at least one of you wants to stay married at any given time. It's when you both want out at the same time that you're in trouble."