The Washington Durable Power of Attorney Form is created when the Principal wants their Agent to retain their Power of Attorney even after the Principal has been declared incapacitated by a doctor. These agreements are usually classified as Springing, meaning they will only go into effect after the Principal has been incapacitated, rather than immediately upon being signed.
Under Washington state law, if the Principal and Agent are spouses and they get a divorce, their Power of Attorney agreement will automatically be terminated. As it is generally recommended that a Principal terminate any Power of Attorney agreements with their former spouse, this is usually a good thing. However, if the Principal wishes for their former spouse to retain their Power of Attorney, for whatever reason, they will need to draft and sign a new agreement.