My sister ruined my wedding cake and shouted in front of all the guests: “You think you’re better than me, but I’ll ruin your life” 
My mother immediately took her side and said that my sister just needed to let her feelings out. But at that moment, my patience snapped, and I did something she later regretted for a long time 
My wedding day was supposed to be perfect. I had prepared for it for a long time, worried about every detail, and sincerely believed that at least on that day everything would be peaceful. Instead, my sister decided to turn my wedding into her own stage.
She arrived later than everyone else, demonstratively loud and irritated. She was sulking because a few weeks earlier I had refused to pay for an expensive purchase for her. All that time, she behaved as if I owed her something just because I was the older sister.
During my toast, she suddenly stood up. I didn’t immediately understand what was happening. She threw her glass aside and, without saying a word, walked over to the table with the cake. In front of all the guests, she shoved her hands into our three-tier wedding cake. Cream and crumbs scattered across the table and the floor.
She looked me straight in the eyes and shouted:
— You always act like you’re better than me. You’ll regret this.
The room fell silent. No one knew what to say.
My mother immediately ran to my sister and hugged her, as if she were the victim. She said my sister just needed to vent her emotions and asked me not to be angry. I said nothing. At that moment, I simply stayed silent so as not to completely ruin the celebration.
But it was exactly at that moment that my patience broke, and I did something my sister deeply regretted. 
Full story in the first comment 
That same night, when I returned home after the wedding, I already had a clear plan. I opened my laptop and canceled all the payments I had previously made for my sister.
I canceled the deposit for her education and housing, then called the apartment owner and said the contract was no longer valid.
I went to bed calmly.
The next morning, my phone started ringing nonstop. My sister, my mother, my grandmother were calling. They all said the same thing: that I had destroyed a child’s life and acted cruelly. That I should pay for everything.
But for some reason, no one remembered that this “child” had ruined the most important day of my life and that even at my wedding, everyone had defended her.
I simply turned off my phone and disappeared from their lives.
