I was reading a review from 'a man a mile' i'm not sure if its true because i haven't seen it but it does mention about Danny and how the others treat him. It suggests that mac and stella see danny as an insubordinate but aiden as an equal.
Quote from:
http://www.csifiles.com/reviews/csi/a_man_a_mile.shtml
'While Stella treats Mac as a superior officer (albeit one she feels close to as a friend) and treats Danny as a subordinate, she and Aiden interact as equals on this case.'
And then it mention:
'When Danny uncovers a major clue, Stella praises him like a school teacher, but with Aiden, Stella seems to admire the woman's ease in interacting with witnesses.'
So i don't really blame Danny for not trusting the others that much if they treat him differently.