wow, your letter could have been written by me. i have the exact same thing going on with my Sennie.
she is a little over a yr old and i got her so we would have a nice family bird we could both enjoy.
my husband misses the interaction he had with his amazon so i thought she would fill the niche for both of us in a much smaller package.
at first she was receptive to anyone who would pet her, she loves to be petted!! so she was a big hit so i thought i did great in my choice of a new Fid.
but i was the one who spent the most time talking to her and being with her and finally winning her trust. she would totally let me handle her and do anything with her. at which point when ever hubby would try to pet her she would bite, so he gave up. he hates rejection and i think he probably feels the same way about her. i feel really bad about that, i know he loved to pet her and fuss over her and now he can't, she has banned him from her space. for no good reason really, he just wanted to pet her. i know now i am her person and no one else will do.
so it seems i got a bird just for me which was never the case, i do enjoy her and take her with me wherever i go in the house and she goes camping with me too. she is a joy to have except for that one quirk of just liking me only. so thats how it is here too.
i have accepted this and go with it. she is what she is and if i must say so myself, she has good taste
my husband and i don't really get along anyways so this is just one more thorn in his side where i am concerened.