My Narcissistic stepmom isn’t getting my childhood cat the treatment needed for her diabetes and wasn’t going to tell me

Hi, first time posting a rant like this so I’m sorry if it’s incoherent or the grammar or formatting is odd, I just need to shout into the void. So I (18 f) have recently realized that I was raised by a narcissist and this is the most recent incident after a childhood of her bullcrap. When I was 7 me and my family got two cats, my dad and stepmom, who we are going to call A for simplicity’s sake, divorced a few years ago and she kept the cats in the divorce.

Recently my younger sister, we will call her K, revealed to me that one of the cats has recently been getting a lot of UTIs int the past couple months and after A googled the symptoms, they now suspect she has developed Diabetes. K over heard A talking to a family friend over the phone saying, “I don’t have the money to be her mom,”

Thing is, she would have the money if she wasn’t buying fast food and Starbucks and shit like that every day and saved some money, and also instead of putting the cat down so that she doesn’t suffer, or give her to someone who can take care of her, A is just going to let her suffer.

The extra shitty thing is that I had to find this out through K, she was never going to tell me that my childhood cat is dying.

I’m sorry if this was incoherent, I just needed to rant.