This might seem really corny, especially to the non-religious types on the board (not that I'm one to begin with), but I always viewed waifus as angels. They hold true to the stereotypical notion of angels. Except, rather than lead us to heaven, they lead us to the 2-D world. Whenever I thinking really deeply on it, I start theorizing that people made up angels as waifus for religious folk. If you think about it, the Bible and other religious texts, have a lot of elements you'd find in our Chinese animes (or pop-fantasy as a whole, but that's irrelevant).
I don't like treating her that way, though - Like an angel. An entity, I feel like it destroys the notion of equality. The only issue is, one simply can't help it. I feel like waifuism is something way deeper than "the biggest long distance relationship of all time". It's something metaphysical, extremely personal, sort of like religion. It's almost completely different, because there's a difference between worship and romantic, "passionate" love.