Okay so this has two sides for me. On one hand the story or let’s say the characters relationship was extremely unhealthy and manipulative. However on the other hand there are a lot of people that can find joy in a setting like this, desperate love, the feeling of having to have this one person (obsession truly is a good title), as long as the feelings are reciprocated. To people who enjoy this kind of theme (in the Drama world at least, not necessarily in the real world) this will be really enjoyable. I also felt like this was a nice addition to the other two storylines of History 1. To me all history parts are basically about showing different kind of loves and relationships.
And obsession (as long as reciprocated) to me also deserves a place between these different kinds of stories.