Every religious cult was invented by know-nothing idiots who were making stuff up.

"Are there people who believe in both a Mr. God and a Mrs. God?"

The ancient Israelites did. It was believed that Yahweh had a wife named Ashtoreth, also known as the queen of heaven. Some even believed that the Babylon captivity happened as a result of banning her worship:

"But from the time we stopped making offerings to the queen of heaven and pouring out libations to her, we have lacked everything and have perished by the sword and by famine.” - Jeremiah 44:18