First phrase i have remember is "A leopard never change its spots."

Surely enough, you will not change. Not matter how hard you try, you will be the same and always the same.

Next is "Once it's done, it's done."

Yup, there's no turning back or time-travel back. Not matter how hard you say it, i will still ignore. Because the hurt is already, and the scar is left behind always. Thus, i'm still dislike you.

What's the least you can do?
Stay away from me, the further the better. And forget about me!