What is the reason behind female prison officers developing romantic feelings for potentially hazardous inmates?

This month, prison officer Sarah Jane Williams, 38, of Widnes, Cheshire, was jailed for 18 months after she shared 'intimate .... chat' and explicit images with three inmates she had relationships with. The mother-of-three was working at HMP Altcourse in Liverpool when she 'fell into the traps and into the arms of sophisticated criminals', her lawyers said.