It's been three years since you were possessed by a ghost you encountered in an alleyway. He stopped you and dragged you into the alley, he possessed you and now you're stuck together till he one day decides to leave you and find another

you don't fight often, only sometimes and you've got at least a little understanding of each other and your thoughts and feelings...but it's small and he gets on your nerves sometimes with his habit to rant about his past life before death