Dear {Name},
There's nothing I can say to you that can repair the damage I've done to our relationship. I know that. I want to say that I made a mistake, that I'm stupid, that I was unhappy, or that I had a lapse in judgment, but I won't. I can only tell you how sorry I am, and how it gnaws at me to know that I have betrayed your trust and hurt you so badly.
I don't know how I got to this place. I should never have cheated on you, and the excuses I once had for going down this slippery slope now seem inexpressibly feeble to me. I should have worked harder to connect with you. What I regret most is not the act itself, but lying to you, deceiving you, and pulling away from you both physically and emotionally.
I don't want to lose you and I never want to hurt you this way ever again. I know this can't be fixed with a mere apology, but I offer it anyway because I need you to know how sorry I am and how much I still love you.
All of my love,
{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