"8% of hostage victims fall in love with their kidnappers in a strange phenomenon referred to as Stockholm Syndrome"... Best Explanation for this?

Apparently 8 percent of hostage victims fall in love with their kidnappers in a strange phenomenon referred to as Stockholm Syndrome... If this is true what do you think is the best explanation for it?
Normal people tend to be so abusive that even kidnappers seem like decent people as a result.
The world is such a cruel & depressing place that being held captive leads to increased happiness because the victim feels protected from the troubles of the outside world.
People have a bias towards liking whoever they are around the most & as a consequence they grow attached to their captor & develop feelings of sympathy towards them.
They gave into this as a coping mechanism for their terrible situation.
They truly appreciated any mercy they received & made peace with their captor.
They just went crazy and have a mental illness.
There's no way that's true/Other/See Results.
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Bonus question: Do you think most people stay in abusive relationships because of Stockholm syndrome or a similar reason?
"8% of hostage victims fall in love with their kidnappers in a strange phenomenon referred to as Stockholm Syndrome"... Best Explanation for this?
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