I mean there kind of is, norse literally has half of all warrior souls go to Fraya for sex upon death. A huge chunk of her lore waa how sexy she was, sure its not anime based but pretty much the same mentally as worshipping a waifu. Greek also had several very sexualized goddesses without even focusing on Aphrodite. Many would devote themselves to specific gods and goddesses as their patron god, so yeah pretty much the pre anime and internet waifu worship. Even outside religion you had sailor carvings figurehead to look like beautiful women as a kind of goodluck charm. The whole act of cheating a ideal and worshipping or idolizing it far predates the term waifu.

Stop making laugh, I’m trying to eat breakfast.