Hmmm....I would think you've had enough of trying to be someone's "hero".
Those were unrealistic expectations that your wife made you feel you had to live up to because she couldn't remove herself from the role of a victim who needed a "white knight" no matter the cost to him (YOU) personally...
and by the lyrics you've posted it sounds like you want to hold yourself to the same spirit-crushing standards.
I get the dysfunction is comfortable but damn
Just be a man, Frank.
Unless, of course, you don't think being an ordinary man is good enough...