I have hurt someone and I can't forgive myself

Problem:
I have hurt someone and I can't forgive myself and I feel bad about myself. I wish I've never done it and I hate the feeling that the person I hurt is resenting me and may never want to forgive me or talk to me anymore. Beside it hurts to know that I've hurt someone else, especially because I care deeply about the person that I've hurt.

Answer:
Is likely that feeling bad about yourself is going to create any positive outcome?
The answer is most certainly no, therefore feeling bad yourself and self-hatred cannot bring a positive outcome.

Equally thinking over and over that the person you've hurt is upset with you cannot bring a positive outcome either.

Said another way: what purpose is there in self-hatred and ruminating what has been done???

Nobody says that you can on to harm and hurt people without any care for those people in the world but simply having a negative feeling about a negative situation just cannot produce a positive outcome.

You have only option: Love. Love/affection is the answer
Why?  simply because they have been hurt emotionally and/or physically. As such they need someone to reach out to sooth and comfort them. Whether you can do it physically or you  can only do it in your mind/imagination does not matter.

Love and do not fear, do not have any sort of negative feelings associated with the person you've hurt because your only option, your only choice is love.

Bring yourself (probably with a big sigh) to have affection, compassion, kindness, feel love, have caring feelings, etc... for the person you have hurt.

Your only choice is to love and have affection, for the person that you have hurt and let no other thoughts in your mind.

Entertain the hope that in time hurt subsides and wears away and that given enough time and persistent love and affection felt toward that person, that person will eventually forgive you (as improvement is natural).

Love is the Answer