W was really surprised and visibly upset as she thought this could be done amicably.
Don't fall for this thought error. Having lawyers help doesn't automatically make the divorce UN-amicable. They will ensure you get the paperwork right and advise you each of your rights so neither of you is shafted either intentionally or inadvertently. There's nothing to fear unless one of you engages in a pointless battle to "win" instead of aiming for a "reasonable settlement", and even then it's usually the party asking for something unreasonable who pays more money for attorneys.
