This is kind of long, sorry.
My sister and I fell out a long time ago: 3-4 years ago to be precise. Our realtionship was always difficult, right from childhood. She was always a terrible bully and that persisted right through the teenage years.
She's always been the type of person who uses herself for the guideline of perfection and anything that isn't like her is rubbish. For example, when she was anorexic and very thin as a teenager, I was disgusting and fat and she teased me. When she got over her anorexia and put on tons of weight, she got very very fat. I grew tall and slim and she said that thin people were not womanly and she was glad of her curves and i was far too skinny and an unattractive stick insect. When we became adults, i ended up heavier than her and a few pounds over weight, while she half starves herself again and now fat people are disgusiting again and she teased me about my weight.
She's also the type of person who will ionly be interested in me when I'm down. She will not want to hear anything potisive about me and will ignore it. But it is ok for her to do well and she seeks constant praise for every thing she does, which isn't much tbh. She barely works, has no children and lives off her husbands money.
We had a huge falling out a few years ago, she didn't invite me to her wedding, called me a fat pig and I'd spoil it by even being there looking fat, and taunted and teased me for being single saying no one wanted me, I'd always be alone and when our parents died, she wouldn't bother with me and I'd have no one. We didn't speak for 3 years, she stopped sending cards for birthday and xmas and so I just let it go.
I don't know what's changed this year but she sent a christmas card and present for the first time in well over 3 years. I send a card back but left it at that.
My paretns have spoken to her and found that the vile language and insults she uses to me, also get said to her husband who never swears at her. He wants children, she really doesn't and is over 35 now. She is worried they may not be together long term now.
AIBU to not give a shit and deem it poetic justice? Or should I be the bigger person? I see it as her only getting in touch when things aren't good for her and she's still a user.