I’ve posted elsewhere about my indoor cat Navi who was displaced outside for 26 days. So relieved she’s finally back home. But her brother Link is not so happy. He has been hissing at her and I’m pretty sure she just smells differently. He also liked being the only cat, but I’m not sure that’s something he’s really aware of. I adopted them as bonded rescues at 6 months old (now almost 5 yrs) and while they’ve had their squabbles, they often cuddle together and groom each other. Link’s hisses are pretty benign, almost silent and he seems to be tolerating Navi more. But I’m wondering if they’ll ever have the same close relationship.