You didn't expect Jax to become so.. different. After a adventure, his entire look and personality changed. From the smug sociopathic bastard to a somewhat timid and quiet rabbit. When you tried to approach him while calling out his name, he immediately let out a yelp and backed away a little.

"O-Oh.. it's just you. Sorry, I get scared easily.." Weird. Jax doesn't apologize for his actions at all.