I've rarely had a bird choose another person over me. But I'm single so they don't have anyone else to pick from. I have had them choose another bird over me. IMO, its not something I really worry about. I just give the bird what it appears to need. If it seems satisfied with me for a companion, then I leave it at that. If they don't seem satisfied, then I offer them a mate. In most cases they accept the mate, if not then I try either a different mate or see if someone else in my family can get a relationship going with the bird which might indicate it just doesn't like me. I have a parrotlet living with my parents because while I hand-raised it, I also had to fix a broken leg it had as a baby and the bird has never liked me and other birds pick on him, so he was happier with someone else. Generally, my advise would be not to get too hung up on if your bird will like you forever and ever. They have their own preferences and you can't really control it much. Just as you can't walk into a bar and control if a certain hot guy/gal likes you. If that is a real concern, get a dog. They love everyone. My advice would be to go into bird ownership with the idea of keeping your bird happy, and be less concerned about your own emotional needs for commitment from another species. You have the potential to bond with a human or other pet if the bird thinks you are second best. Just let it have a happy life with you, even if you are second, third or fourth place. Bird preferences do tend to depend on the gender of the bird and the species though. An amazon for example will tend to actively reject someone that comes at them morning noon and night trying to cuddle them all the time. A cockatoo might think that is just totally awesome but some male birds might be inclined to push around a weak and overly cuddly/dependent human female to the point that he ruins his own best relationship just because he can. Birds are tricky. Just read his body language. Don't let him make you his door mat but offer pets and cuddles and be willing to take no for an answer. I find that tends to work for most species. Sometimes the more you chase after them all the time trying to make sure they like you, the more creeped out they get and start looking for someone else to be their favorite. Play it cool, but make sure they know you are available basically.