Welcome!
If it's any consolation Jenn, that's exactly what happened with me when I got Remi.
My partner was all "I don't want a bird, I think you're bonkers for getting a bird" and now she's home, he's her favourite person! She flies to him first, she prefers snuggling him, and now - she's giving me much more sass than to him!
I, like you, feel a bit offended. After all, I'm the bloody bird slave here!
I understand it's the way sometimes for them to prefer one over the other.
My tactic moving forward:
* My partner doesn't dish out treats for a while.
* I'm the training lady (and thus am the treat lady)
* We both still "train" in our everyday actions (eg when she does something on command she's rewarded with praise from both of us)
* My partner is the "Big Meanie" - which means he is in charge of stuff she's not too keen on, like bed/cage time, showers, etc.
* I do my best to be, er... more persuasive with stealing my own amount of cuddles (but only as far as she's still comfortable.)
I haven't a clue if this will work, but *shrug*.
If there's anything you haven't thought of above, try that too.
Good luck! I'm hoping that with the huge lifespans these creatures have that eventually it'll all get figured out...