naive lies my son.
It would only be a matter of time before 3D women would find her and change her to thier way of thinking. Eventually she would want out of the nice little bubble you madde for her and then...when she figures out what your world is and what you are. She will hate you for it.
Don't live the lie. Let the waifu be free in the world of your hentai/manga/anime. It's where she belongs.