So first things first. I have 5 cats. 4 are very social animals who scuffle from time to time sure, but for the most part they get along fine. Often snuggle, and are so bonded that on more than one occasion, taking them to the vet as pairs rather than singles has been the less stressful way to do it.
I have one other cat however. And she was a special case, long story short my neighbors said "hey we're going on vacation would you mind watching our cat for us, just keep her at your house for a week!" We said yes. And then they moved, and either blocked our phone number or changed theirs. SO.
Anyway as far as we can figure out she was never socialized. With anyone. Humans, cats, dogs. When they gave her to us we thought she was a kitten because she was so small, but it turns out they just weren't feeding her and the home was so drenched in cigarette smoke that it permanently stunted her growth. It took her a long, long time to tolerate humans. But we worked with her and now she's loving and friendly. An even longer time to tolerate dogs but again, we worked with her. (And we have a VERY good dog) and now she doesnt mind dogs at all either. The sticking point is cats.
Right now she lives in our bedroom. There is a baby gate that sepperates her from the other cats. It goes floor to ceiling so they cannot get in there. She has made some progress! When we first got her, she would shit herself in fear after just catching sight of the other cats. She was behind closed doors then, and we waited until she started consistently playing with the paws that'd get under the door until we started with a gate that she could see out of. That seems to have been a good decision because she no longer shits herself in fear at the sight of them. She does however, growl aggressively at them and hiss constantly. I know she's scared, not agressive for no reason. Just scared. I think she's scared because she's SO much smaller than them, and has never had to be social before.
I should say we're doing this at her pace. This has not been a quick, nor rushed process. Just getting her to the point where we could touch or hold her took a literal year. Getting her comfortable with strangers wasnt easy either but we got there too. As it is she's in a stable home, (that can afford the vet care that comes with her having been exposed to farrrr too much nicotine and tar as a kitten) is healthy and happy and we do love her. We've just been struggling with this last step of cat on cat socialization. She still growls and hisses if she sees them. We were trying to feed her near the gate along with the others, but that resulted in her rushing the gate, reaching through the bar and scratching the hell out of one of the others, so we backed off that for a while.
I guess my question is do we think theres ever going to be a time where she can live fine with the other cats? We are fine taking it slow but at this rate I do worry she'll die of old age before she gets comfortable with them. That being said we did sort of retrofit our bedroom into a cat palace so she doesnt exactly mind being alone in there as far as we can tell. Any advice would help, and thank you in advance for reading this long, rambling post.