Silly me!
This story is a pretty sad one. It involves a clueless landlord and his good-intentioned father who came off as a creep. He would visit at weird times at night just to hang out. So, the OP and her fiancé decided that they’d look for a place somewhere else.
Before they left, the landlord came over and asked them to pay their rent. According to the OP, she hadn’t missed a payment and had transferred the money to the landlord’s father. They presented the landlord with proof before he checked with his dad. It turned out that the father had received the money, he just never checked his account.