For years and years, my mom spent thousands of dollars on my siblings children--for gifts and other things. Finally, I pointed out that she didn't spend a dime on her furry grandkid despite the fact that he was more part of her life than the others. I told her it was hurtful. And I kept harping on it. That Christmas, she bought him a super nice dog bed. After that, I referred to her (on his behalf) as grandma instead of mean lady who hates him and does everything for the people-shaped grandkids.