What is the worst thing that anyone has ever said about you?

When I was a teenager, I was very depressed with no energy to do anything. My cousin wanting to go to the park asked me if I wanted to go and I said no. And she said “seems to me like you don’t have a life” with a disgusted look. It’s probably not the worst thing anyone could say but I took it very personally and it stuck to me for years before I came out of my depression. 10 years later, and the situation is the opposite between me and her but I will never say those words to her.