Yesterday my cousin (21F) who I do not talk to anymore for personal reasons came into my mum's house to help us pack since we have to move on the 15th of may, she then proceeded to steal 2 out of my 3 cats named Zero and Zizi, her defense? They were originally her cats. Yes she adopted them, but then she proceeded to abandon them and leave them with me (19F) and my mum (50+F). For more context I am diagnosed with Autism and anxiety, I had previous trauma over moving due to my old cats, Petal, Joker and Daisy not wanting to move with us to our old place in 2015, I was only 10 back then and it destroyed me emotionally, at the age of 14, Petal was found by some people who took care of her and found out she was chipped and belonged to us and returned her to us the day before my birthday. During that time where all my cats that I grew up with since longer than I can remember disappeared and avoided me, my cousin adopted a fluffy white cat named Zero, since I was so depressed without my own cats I grew heavily attached to Zero almost instantly, so much so that my cousin complained that I stole her away from her at times when I was just grieving over my cat's abandonment, a few years later, the same cousin adopted Zizi with desire to take care of a kitten, out of fear of me "taking her away" she forbade me from interacting with her, as a kid with so much love to give I was heartbroken but understood, Zizi was conditioned to only be around cousin so never got any opportunity to be around the rest of the family. I tried to stay my distance away from the kitten but that all changed when we had to move a second time to our current home, a few years in to our current home she still lived with me and my mum but never did anything around the house leaving me to do everything since my mum had a fall a few years back leaving her requiring a walker to go places, then cousin straight up left the house to live with her father, knowing full well she couldn't take either cat with her, she was prepared to start a whole new life in NSW and leave me to pick up the pieces. I had to flex taking care of my mother, myself and 3 cats all at once, it was no surprise when Zizi started coming to me for attention whenever she was lonely, I became a cat mum of 3 and a full time care-taker before I was even a adult. Now we're being kicked out of our house by the owners because we can't afford 500 dollars a week for a 3 bedroom house and are struggling to find a place to live on our low income, I am overweight myself so I have problems doing many things so we needed someone to help us pack, and cousin volunteered to get her old bed out of her old room to help de-clutter, the cats always hide in the garage whenever anyone they deem as a stranger is here, which after her abandonment, cousin was in that category, I was playing on my xbox de-stressing from everything that is going on in my life while she went into the garage to "pack" and stole Zero and Zizi in broad daylight, we didn't even realise until 5pm when we started making dinner, and found out what happened after eating dinner. I was furious and marched down to my grandmother's house to talk to my aunt and demand to know where my cousin lives, she proceeded to be drunk and not even care about my emotions and just telling me to calm down. I ended up swearing at her, calling her a b*tch and left, now aunt is p1ssed off cause I outed how terrible her daughter is on Facebook and is now not wanting to help us with even getting mum anything for breakfast (She eats English muffins for breakfast) while her and my grandmother called me and my mom a-holes for getting upset when cousin was "just trying to help" our chances of getting a house by stealing our cats in broad daylight. So please people of reddit, am I overreacting over my own cousin stealing what practically is my children away from me? I loved them and now I'm terrified how scared they would be with a complete stranger and feeling betrayed by me when I promised them I would never abandon them. (I'm so sorry this was so long I'm just so angry about all of this and I can't talk to my mum cause she'll get upset and I don't even have a car to resolve this issue by myself. I just want to know if I am at fault here, I feel like I'm not but I can't help but blame myself for all this)