Kiwi is okay from what I saw. They tend to think we're all self proclaimed sociopaths here, which is funny. They have a high compatibility with us cause their humour is bleak.
I know Luna would fall for that Null character cause he has the icy blue eyes, is techy, and he makes light of his dark side. They turned sour for Luna cause she seemed to reward Dexter for his attacks while he'd lick her boots, so this Null character who Luna became fond of, ended up assaulting her with his people. That's when Luna would be critical of dividing her only mod with her aggressors. But you never noticed it.
But you got tricked. In the end I hope Null and Luna will get along.