Best friend

My best friend lives few blocks away from my house. I was new to United States in my junior year of high school. I met my friend and we started hanging out, he helped in my homework, made me new friends. As time passed by we started trusting each other, I would tell him about my family and my origins and he would share about his family and business. One day in senior year he was sad because he was going to graduate but I could not figure out the reason for his sadness. Just like other students I was happy and expected him to be happy. I asked him the reason, first he refused but then he told me that he is graduating but he is in doubt if he would pass his math class or not. I asked him what's wrong because he was a good student just like me with all good grades. He told me that he cuts his class to be with his girlfriend. I advised him to leave her girlfriend because neither she was good at school nor she loved him. He got little angry with me and did not talk for two months, but during middle of second semester of senior year he randomly showed up to my house and just said "You were right". I did not know what was he talking about but then he told me that he caught her girlfriend cheating and broke-up with her. Now it's being almost 4 years we have been friends and he trusts me consider me as his brother. Although, we don't go to same school but whenever I need help and call him, he is always there for me as a brother. He shares everything with me and I do that too. It creates a stronger bond between him and me and our trust grows stronger. As mentioned in the book our friend ship is based on trust, acceptance and willingness. We invested time to correct our mistakes, did not give up, and accepted each other's ideas.