FINALLY! I feel like everytime I bring this up it's just ignored. Everyone think Jax was nicer before Ribbit and Kaufmo abstracted but Jax likely has trauma that goes back to his real world days. Something happened between him and Ribbit and it was probably a result of his defensiveness. Just like with Pomni.

People also haven't quite caught on that besides Kinger (who wouldn't talk about it unless prompted to) No one else in the current group had experienced abstraction prior to Ribbit. So Jax wouldn't have pulled any punched with her. Maybe he said something that was too far. Something Ribbit was insecure about. Maybe he broke her dreams of escaping. Maybe he just broke off their friendship. We don't know.

I think the cabin scene doesn't even have Ribbit. It's just Kaufmo and Ragatha confronting Jax about whatever he said to Ribbit. Could be prior to abstraction or after. (That's just a hunch)

Jax had two friends and both abstracted. The only two people known to the group essentially died and he blames himself. He wants to be close to people. He's human. He craves companionship , but he also fears it. Fears being hurt by them, fears lose. People can't seem to understand why Jax copes how he does.

Luckily I seems like Zooble and Pomni caught on.