Chronic physical pain

My wife is temporarily disabled because of recent back surgery. Her pain for 6 months prior to teh surgery was unbearable for her. She refused to help me adjust our lifestyle to cope and the resulting stress has continued to build. She balmaes me for everything. I have a nasty temper and it is difficult to control under these circumstances. Her loss of control of everything in her life is driving her and me crazy. I am not allowed to share my feelings about this with her because “you are not the one with the condition. It is about me.” This has had a devastating affect on our life because she can’t do anything. Pleqse help me cope.
Thank you