Hi, I learn in my experience through life is that a true friend is like a sister, you'll have your ups and downs, a true friend sometimes has to be a good listener at times without offering advice. As a grown up, you learn to move on , especially over something that cause no harm or pain to anyone, that's how you forgive by not dwelling on past hurtful events, why bring up the past when it's so much easier to move forward with the future,