Stockholme syndrome is a response based on fear and pain, if you only interest is Pain, pleasure and tranquillity of the mind then the syndrome is triggered by your brain trying to protect itself making something bad become good so you don't suffer from it, but that's only a physical response to trauma, you are basically making something bad become good in your mind just to protect yourself from facing reality, but if you actually have something you love ( talking about these circumstances) you won't, the syndrome is based on self protection, so it's an egoistical process , truly loving someone is something ( mostly) selfless.
In hentai there are alot of works that depicts grape and mindbreak, but also the individual never stops loving that one person and , if given the chance, they will kill the grapist and go back to them.
If they have no way of escape and they're aware of that fact, they would kill themselves on the spot, or bite of their dicks off, but Ntr it's based and made on egoistical desires, that's why there's that surreal change that happens so " fast" from loving wife/girlfriend to complete slut, one of the first responses in this kind of fiction it's always " omg this is so wrong but is so good" that's the logic of a person that it's a slut to the core and, in relation with another person only truly cares about pleasure and self fulfillment.
That's why i never feel bad for the woman in NTR, they're purposefully all written like covert whores.
If physical Pleasure and well being it's the only thing that truly matter in your relationship with your lover than you're not loving at all.
