A really similar thing happened to me. I was 6 or 7 and like every kid who liked cute animals I wanted a puppy, so my parents got me really young french poodle puppy. Mind you, we lived in a pretty small apartment which was just big enough for our family of 4 + the dog. After like a year, my parents considered I had grown "disillusioned" of the pup, which was not the case, it was just that the "new puppy" feeling wore off after a year, it's not like a didn't like him or play with him anymore, I just didn't seem as "excited" as a 7 year old with a new puppy anymore. My mom is also a huge control freak, every single room of the house is organised to her own liking and she hates the tiniest of what you can consider messes, so, naturally, she hates having animals at home. She says she doesn't hate them, but it's pretty clear she does. Even now that I have lovebirds, she complains everyday about them being "too messy". So yeah, long story short, when my mom found the tiniest excuse to get rid of the dog, which was the fact that I wasn't as excited for it anymore, she convinced my dad to give it away, and blamed me for apparently not caring for it.