It looks like a form of obsession probably just wanting to live rent free in the victim's head at all times
As what Nuu said, and he probably likes feeling in control of him like lots of abusers and bullies yknoa
You framed it pretty well. I think Nagare was his hope? Like, he wanted to test again and again how much he could persist being a good person...
Probably. That makes sense
Guys I'm not getting it. Was he in love with his victim??