Married to a JW, Never A JW, and myself...we are in the same boat.
I have told my husband that seeing the literature sets me off. We agreed we both would not read any religious material in the bedroom and have any laying about. So far this has worked.
Being enraged by the sight of that material and even more so enraged seeing your loved one reading it is not irrational.
We all do need to work on the anger part though because anger isn't healthy, but turning it into a productive feeling is. I use the anger to do research, and try to have as many material for "seeds" as I possibly can. Those seeds are not directly JW, but indirectly related and might cause my husband to thnk...really think. I also use it to try to create in our marriage what he seems to be needing from the organization. For him I believe it is more structure in his life. The other reason I cannot provide ( and neither can they) , and that is relief from his physical illness. ( The belief it will be all over soon) Beyond all that I try to focus on myself and my children. I focus on what my own goals are and recognise he may or may not be in them, but that is life. He could also have died a few months ago ( this is for real, as we just this found out- he was extremely lucky).
Life is day to day, as well as planning for the future. We never know when the plans/goal might change, but making the goal is important as well as being flexible.
Seeing a therapist that specialzed in spiritual abuse was also cathartic for me. He helps to ground my anger as well.
The WTBTS is extremely destructive to a marriage but we also have no ability to control the person that wants to believe in it. We control only ourselves and that can be so difficult sometimes. This site is one lifeline of support and venting for me. I hope it is for you too. Yuku is very good as well.