Pearl felt lonely.
Ever since his only family, Alex, decided to leave him, he had felt lonely. When he had asked why Alex had left him, they told him that this was not his world and that he left for his.
His world was with the humans and they were his family, so he had to go back to his family. Pearl thought he was his family.
Was he not his family then?
The big puma was quite scary, and while the jaguar tried to not act scary, he still was. The jaguar sister made him feel loved, but she couldn't be with him all the time.
He liked the training and the cultivation during the start because Alex was there was to praise him. But now it just felt like a chore.
He no longer got the free time to simply stay around being a normal little cat, like he wished to do so these days.
He missed the days when he could just endlessly sleep in Alex's beast space. He didn't have to fight, cultivate, or learn to speak. He missed that.