The crux of the issue here is that a waifu is imagination personified. By definition, she is how you fantasize her, and this thought is aided in taking form through a personality set forth in the original source material she came from. The healthy man knows he is imagining his waifu, and accepts this.
Definition of lye. 1 : a strong alkaline liquor rich in potassium carbonate leached from wood ashes and used especially in making soap and for washing; broadly : a strong alkaline solution (as of sodium hydroxide or potassium hydroxide )
A 'stye' is a lay term for the same thing. If this sounds a lot like a pimple that's because a chalazion is essentially the same thing, except that the oil gland is MUCH larger and surrounded by cartilage instead of soft tissue.