There is a better option: Listen. Really get to understand her. DO NOT agree with her, but don't argue with her. There's a difference. (What you resist persists.)
Validating is not agreeing. It is letting her know her point of view really matters to you. You want to understand her side of things, and even more for a woman--her feelings. You want to understand how your actions or lack of actions have impacted her.
Then change accordingly.
Thanks Dbmod, this is how I handled things last night and I felt like progress was made...it could be false hope - but at least I live to fight another day so to speak.
Me - 34 W - 33 M - 8 years T - 15 years D7, D5, D2 Bomb Nov 10/2010 "I'm not happy and INILWY" W Staying for the kids Mar 13/2011