Read the text and answer the following question!

    Dear Margaret,

    I am really sorry for the way I behaved with you at Jen's birthday party. I was in a really bad mood because of the project that I am doing at college and also because of the argument I had with my boyfriend, before coming to the party. However, this is no excuse for the things I said to you that day. The reason I have decided to write this letter is that, I understand that I was a total fool to shout at you. I want you to know that your friendship means a lot to me and I do not want to lose you because of my stupid behavior. After whatever I said to you that day, I know, it will be difficult for you to forgive me. But, please give me another chance and I promise this will never happen again. You are a very dose friend of mine. You were with me through thick and thin and I don't want to lose you, ever. Waiting for your reply.

Love, Samantha

(www.penlighten.com)

Why did Samantha write the letter to Margaret?