I’ve read the raws, and it is definitely a story like killing stalking (u can understand it from the title, because the Stockholm syndrome is when hostages develop a psychological bond with their captors during captivity.
So in the end, they do not end up together, and the « hostage » is being liberated, however he has developed a bond with the scary guy. So this story is not about love or anything that could be close to love, it’s rather a phycological story of a man who is being blackmailed and who suffers a lot til his friend saves him.