Funnybunny would not be abusive
Personally,I don't think so. Yes Jax is abusive to Gangle but I don't think he would be with Pomni.
A. Pomni can and will fight back! This is not me blaming Gangle there's no excuse for Jax's actions against her. Gangle in the show is very dormant; Pomni on the other hand will call out, stand up to you, and has no problem being physical to you.
B. Gangle Goose confirms that Jax vents his feelings on his mother on Gangle. Jax would not do this to Pomni.
Depending on when Jax comes back from his, it's abstraction. They won't try to push people away to not like them and he won't tell himself that this dosent matter or real. Which he has use to escuse his bullying and abuse.
C the relationship way more equal. While Jax did come to Pomni. Pomni only talks to Jax when he was not being a jerk and is more open. Compare to Gangle where Jax basically took control on day one.
D. He respects Pomni,when Pomni asks him to do something he will do it.
Bottom line, Jax and Pomni's relationship is healthier, and if they did become a couple. It would be a healthy one.