"From what I remember he was somewhat grump and grumbled at me a great deal." Hawke didn't have much experience with Jefferson. They had only spent a great deal of time together during the dinosaur attack and that was only in the aftermath.
It wasn't exactly the best bonding experience. It didn't lend itself to conversation either. Hawke had the distinct expression that Jefferson didn't like him. He wasn't hated but he certainly wasn't friendly. Then again, that seemed to be Jefferson.
"I will admit I've clung to Killian quite heavily lately. I'm scared he'll vanish." Which was a distinct possibility in this world. Hawke hated that.