What's the most hurtful thing anyone has ever said to you?

For me it was a clmate in the 5th grade. I was curling parts of my hair with a pencil because I just found out that pencils could do that and liked the way the curls were so small. Then this kid was like,"Why are you curling your hair, you're not pretty." Well I hadn't even thought about being pretty and I was too young to think about who's more handsome.. well what he said meant to me"You are unfit, you will not be loved by anyone, you will live alone and will die alone." Well by the 8th grade girls were telling me that I was "so pretty" and I didn't believe them, I thought they were all making fun of me because I was ugly to everyone before(I had been told on more than one occasion). Well I figured that it was possible because I didn't care to fix my hair other than the basic pony tail and I was poor and didn't have nice clothes. Those same guys who made my life a living hell in school have tried to make moves on me. It's weird and I don't think I could like someone who only is nice to people because of the way that they look. I've struggled with my self- esteem for a long time, and it still appalls me to this day that people would call me "pretty" I don't see it for myself, but there are people who do. It's just nice to know that people have different tastes and there's always someone who will accept you no matter who you are.