Oh man - that library lady was EVIL! Seriously that is one of my fears about checking out or buying relationship/divorce books from the store and library.
Sounds like you are getting yourself on track. It's so hard to remember to react differently - came close to a slip-up myself last night but think I recovered quickly. Remember that you are making these changes to how you treat him for yourself! Hopefully it will save the marriage...but worse, worse case you will have the tools to have a great next relationship.(Although not something you're likely ready to consider right now.)
Hang in there - change takes time...but this is for YOU so you have forever!