New Fischers lovebird behavior?

Question
I recently bought a 9 month old hand tamed fischer's lovebird. since he's my first bird, i don't really know what's normal behavior. The first day i brought him home, he wouldnt move unless handled, and he did not seem to enjoy that at all, the breeder assured me that he'd warm up within the next couple days, but he's not eating unless it's out of my hand, he only drinks when i put the water dish infront of him outside the cage. He doesnt seem to want to bond with me, maybe he already bonded when he was at the breeders, i havn't a clue. But, all he does really when he's in the cage is sit in the same spot and stare at himself in the mirror. he rarely chirps, and i'm concerned.

Answer
hi. thanks for your question. congrats on your new bird.  
Anyway, in general, it would be natural for her to be nervous...he is in a new place with new people in a new cage without his old "flock".  when a bird is in this situation, it is common for them to stay in one spot for sometime until they are accustomed to their surroundings. also, it is common for them to be quiet for some time until they are used to their surroundings...this is a survival tactic as in the wild, a noisy bird is usually a preyed upon bird. birds are usually quiet for sometime until they feel like they are in a safe place before they really start "opening up" vocally. one day, you may long for the quiet days of new bird ownership! additionally, the breeder is correct in that in can take some time before he is totally comfortable with you.  since you said that the breeder handraised him, this usually makes the taming process easier. He would have hopefully already been used to handling, care, and the company of humans. he may also have been housed with other birds which would explain why he is acting differently now that he is solitary (including the looking in the mirror at the "other" bird for company behavior).  
the behavior that you are describing indicates to me that perhaps he was "used" to having his breeder handfeed him past weaning age...this is unusual but not unheard of. thus, you are correct in assuming that he may have bonded with the breeder and is still "getting used" to you.  the good thing about birds is that they can create bonds pretty much indiscriminately meaning that even though he may have bonded with his prior handler, there is no reason why he should not eventually bond with you. do not be surprised however, if it takes longer than several days, especially since he is already 9 months old and has already been accustomed to almost one year of different living arrangements.
i would continue to give it time and see how long it is before he warms up to you.  obviously, it is not feasible for you to let him eat out of your hand only and he will need to learn to eat out of his bowl and cup inside of his cage (again, be patient, he is experiencing ALOT of environmental changes and is probably really stressed out). this can be achieved by  placing his food and water bowl in his "comfort zone",  where he usually sits in the cage.  you can try gradually moving it further and further away from him until it is in the appropriate place. if he is hungry, he will eat! some birds are frightened by the strangest things (odd/shiny colored food bowls terrify my canary) so you may also want to assess if the food dishes/bowls are oddly shaped/colored or something about them frightens him.  
if this "depressed" behavior continues and he remains quiet and still for another couple of weeks or so, i would consider a trip to the vet for a checkup.  also, a change in appetite that persists (for example, he refuses to eat even out of your hand) then definitely take him in.  however, it sounds to me initially like a stress reaction and that time, and most of all, patience, will pay off.  continue to work with him, monitor for any signs of health problems, and be patient.  a call to the breeder might also help clear up any concerns.  good luck and let me know if this helps. alicia