>>149984702
No, I think it's for his own survival. He's an irredeemable monster whose core is deeply rotten.
He could have tried to turn Ribbit into someone like him, but he couldn't bear it, and maybe that's why he withdrew.
Jax mourns the loss of his only friend and doesn't want to feel the same way again. When he watched Pomni leave, he saw Kaufmo's room, which was nothing more than a bitter reminder of his loss, Ribbit. When he saw his room, he considered whether to bond with Pomni at the risk of going through the same thing again, or simply not risk feeling the same pain.
Of course, he chose the latter.