Just looking at myself (I'm new to the instinctual variants), I can definitely see the addictive side (I get obsessive with things to the point of consummation) and the lingering on intense experiences. Also the yearning.
How about this: I also have a love for fiction that is . . . for lack of a better word, melodramatic. What I mean is fiction that displays a heightened sense of reality. (Although oddly enough, I get bored easily with pure romance stories). Realism bores me. I think this is related to being a sx-dom.