After a few days, Sooty headed off to find her, crossing dangerous bridges and open terrain during fall and winter, just to be with her again.
Cats can be intuitive, even sympathetic.
This same documentary showed cats being used in nursing homes to companion with patients. For these people, they provided something to care for, rather than only being cared for themselves. A charcoal gray named Smokey seemed to know when a patient was seriously ill, and would stay by that patient's bedside, hour after hour, day and night, in gentle, supportive companionship. I used to agree, but now that I've spent a few years living with our felines, I'm a confirmed cat lover. They may not shake and wag, but they definitely let us know, with their gentle ways, that they love us.