In order to get a mate, you need to give them presents/gifts (eg: Prey, stuff you found on the floor etc etc...) then, when you go into your inventory, there will be four cats with stars besides them. When one of those cat's stars are all shaded in, you have to buy them a flower thingy from the cafe (What's the flower thingy called again? Anyways..) then, they will become ur bf! Do the same thing again but instead of a flower thingy, (fLoWeR tHiNgY) replace it with a diamond u buy at a cafe and if you have 4 hearts, BOOM! You're married :3