Apologize Letter to Friend
I want to say sorry to you for my behaviour I did last day. I am feeling guilty on that as I have realized that I was wrong and I am sorry that it offended you. Looking back on it, I am ashamed. You are one of the best friends I have and I hope that you will ignore my mmisbehaviour
Please accept my sincere apology for my insensitivity and be assured that I will no longer do such thing again.