I have had my umbrella for 25 years. Over the last several years he has turned away from me to the point of biting if I give him the chance but he loves my step daughter. He will climb and cuddle up to her but will not even step up for me and if I try to pet on him he will turn as if to want to bite me. Tonight she had him out and as usual he was loving all over her, then got down on the floor and started coming after me. I tried to pick him up and he tried to bite me, step daughter was able to then pick him up without any issue. I am frustrated to the point of possibly rehoming him. Any suggestions as to what I can do?