Here is a sample template you can use to write an apology letter to your daughter.
I hope you are doing well, my little angel. We miss you here so much. I know I have not talked to you in the past few days as I was too busy with my office work, and I am really sorry for hurting you in any way.
I know I have made a mistake by assuming that you understand my deep love for you without even showing it to you. Thus, the unsaid words have created a needless misunderstanding between us. Today, I am writing this letter to clear out everything and to offer you my profound apology.
[Mention your reasons for seeking apology]
I want you to know that I am proud of what you have become. I as well as your Mom/Dad love you so much. I hope you would think about this and forgive me.
With lots of love,
Yours [Your name]
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