We bought our cat 5 years ago and she's always been loving and awesome. We even nick-named her "the coolest cat in the world", lol.
Then one day my fiance's mom saw our neighbor calling our cat from across the road, saying "Here Tigger! Here Tigger!" and then scooping her up and taking her inside. Our cats name is Sonic. Not Tigger. I'd have gone right up to the door and demanded my cat but I wasn't there. This lady just STOLE our pet and thinks it's okay so I'm pretty peeved about that but we let it slide, thinking "Well, she can feed her and pet her if she wants, but she sleeps with us at night so it's cool".
Well we saw some kittens at the shelter last year and adopted them. We did our best to introduce them as nice as possible but Sonic wouldn't have anything to do with it. She hissed and spat and then wouldn't let us touch her either. She's been acting strangely ever since then and as soon as she would smell the kittens on us she'd act like we were abusing her and scratch, bite, hiss, and growl at us.
Then, one month ago we took in a stray cat at the exact same time that we bought some VERY BAD cat food. It smelled like cardboard and the cats wouldn't touch it. After a couple days of that we had to go buy the regular stuff. Well with the new cat + the bad cat food Sonic disappeared. She was gone for like a month and then last night we finally saw her outside and lured her close enough that I could snatch her by the collar. She acted like a feral animal! I've never seen her so bad. We took her inside and fed her a baby rat (I breed them for our snakes) and she wouldn't eat it. She acted like she'd never seen a rodent before, and she used to be such a good hunter. I dunno, maybe she'd already eaten. She was still acting terrible after that so we put her in a cat carrier for the night and have her locked in a room today with at least food/water/bed so she can get used to the place again but I'm not sure what else to do.
Either she decided that she wants to live at that other place, or she doesn't even have a home anymore and just eats out of the other cats food dishes in the neighborhood and leaves.
What should we do?? We love her and want our kitty back. My fiance said that if it doesn't get better he's going to go to the neighbor's house and demand compensation for the vet bills (she got spayed and also had a hernia fixed), her original purchase fee, and extra for the care/toys/collars/treats we've bought her over the years, since they are the ones that poisoned her mind to begin with. I told him that they'd just laugh at him and it would do no good, lol.
I AM really peeved at how rude the neighbors could be for pretending that our COLLARED cat (that even had an ID tag with a phone number on it) is theirs. I would never take someone else's animal into my home, ESPECIALLY if it had a collar... but what can we do, you know?? What happened, happened.
Sorry for the long read. Thanks in advance for any thoughts/comments/advice!