Sometimes it's easier to keep making a mistake than to change your whole life plan and rock the boat and cast yourself into the unknown. Plenty of people do it. I suspect he will stay until it gets more painful to stay than it does to leave.
Madness string 111941
Between lady foxes in heat sounding like women being murdered, barn owls screeching like tortured souls, whatever it is that crunches across my gravel drive at 3am, and idiots who let their cats roam at night, the dark is full of interesting noises.