Dear {Name},
I am sorry for how I treated you today when I lost my temper. Even though we disagreed about board game rules, I should have found a way to work it out with you instead of throwing the pieces so that we could not continue playing.
Next time let's compromise instead of arguing. You are my sister and I love you. I want us to be able to play without fighting.
Sincerely,
{Sender}
Download this apology letter template — free!
Formatted and ready to use with Microsoft Word, Google Docs, or any other word processor that can open the .DOC file format.
Index of letter of apology templates