As one who just tried this. Be ready for a non-answer. A, "I wan't to end it, but for the right reasons" or "I think you are being too controlling". Reason won't work.
M:37 W:34 M:4 years T:6 years No Kids A disclosed - 9/1/2010 W asks for separation - 10/19/2010 Moving on - 10/24/2010 A ends (and I believe her) - 12/2010 Content - 3/1/2011 Served - 3/18/2011 D Day - 6/20/2011