Given these two idiots are the same age and have likely been in Zodiac for around the same amount of time, I expect they're well-used to each other by now. Jax, of course, consistently pesters Nico with his bitch-ass pranks and generally being an obnoxious pain in the ass. Despite that, he probably appreciates how hard Nico makes it to like him- he's very 🤝 about that and might get the tiniest bit of respect for it. Not that it would stop him from being a jackass, of course!