There is one thing I really found helpful in understanding how passive aggressiveness works. I suggest you search for The Three Faces of Victim, An Overview of the Drama Triangle on the internet. In that one article is a wealth of information on the dynamic.
labug is correct in that if your spouse is P/A only he can change that about him. He has to choose not to be anyone's victim. That means accountability, and for many being accountable for their choices, behaviour and decisions is scary.
BITS Me-51, WAS-52 Kids 2 M-26yrs, H.left 2009, 2 more Bomb drops, Reconnection spring 2013 Change is inevitable, personal growth is a choice. Love is a action and choice you make, every day.