I'm not sure if it is a DLC Exclusive, I heard it from someone else. But I haven't seen any marriage options aside from day one when you make the bet. How do I get them?
All I know about four is that It's called Duo, and knowing how it ends I would suggest that you do what you did to get three, but instead of giving away more of your soul to your pet or plant you stop. Let yourself get weak enough for concern, but not enough to die. How do you get five?
