Maybe my thought here is a skewed interpretation: exaggeration and creativity show signs of self-expression and thinking outside of your normal self. I do feel a little guilty for not having thought of that all on my own. I guess I am a lucky one. In my life, a bunch of lies are acceptable to me. Santa Clause, Easter Bunny, Tooth Fairy, Darth Vador (ok, maybe not a lie or acceptable). Disprove their existence. That would have been logical. I wanted to believe in these iconic figures. I did believe in them. They served me well, and as I grew into a new form of myself, I left all those things associated with my childhood behind. Surely, I miss them.
I am sorry for your struggles with your wife and her mental condition. I hope her happiness bring you solace and a new partner (if you so choose) and I hope she takes a safe journey towards conscious living