Yes. They’ve known each other about 130 years and very will likely remain stuck with each other for the rest of their natural lives.
Because he likes them.
*Most people who knew Hyssop before the incident that split his muzzle say that his personality is completely different now, it changed him from shy, meek and self-hating into an grinning extroverted loony. Atlas though? Atlas says he didn’t change at all.
*Much of Hyssop’s puberty growth spurt happened while he was cloistering himself away from others, upset about his master’s death, so when him and Atlas reunited, Atlas had a serious shock, as he’d grown to be twice as tall as him in the few years they’d been apart. Even as a sprite Hyssop had been taller than him, but still!
*Seekali forbade Sornal to discuss his abilities around their daughter, or mention gruesome or morbid things, once she was old enough to understand the content of sentences. He found this so difficult, their daughter remembers him during her childhood as mostly looking gravely concerned and being somewhat distant.
*Sornal’s first real gift to Seekali was a dead bird.