How To Write A Letter To A Cheating Spouse . It is cause for concern if a purely virtual friendship is now blossoming into an “in real life” relationship. I can even believe that you truly love me and that your indiscretion hurts you emotionally much the same way it hurts me. Letter To My Boyfriend Who Cheated Letter from letternay.blogspot.com I understand that you wish all this never happened and that it would all just go away. Dear you, i admit you had cheated, and you admit that too. And they certainly weren’t “seduced” by some homewrecker.