Very true, only difference perhaps is rape is mostly an act of violence.. Something the skin walker is very capable of... However seduction of the victim, making her fall in love before the reveal that it is actually a horrible monster? That is down right sadistic, something the skinwalker excels at....
Seduction comes in several sorts... there's the "fling" sort of thing, the one-night-stand, the lost weekend, the week-on-vacation-and-never-seen-again, etc. That isn't really "in love," and the "big reveal" might be horrifying, disgusting, etc... Inducing someone to fall deeply in love? I agree that the sadism is
far greater; but I doubt that a Naagloshi would care enough about any mortal, be patient enough, to invest all that time... they despise humans too much to invest that much into any of them!