To,
__________ (Girlfriend’s Name)
__________ (Address)
Subject : Apology for misunderstanding
My Dear,
Our Love in this relationship is stronger and above all the misunderstanding.
I would like to start by saying Sorry for the wrong I did to you, please find this apology letter as my acknowledgment for the mistake, your forgiveness is all I ask for. It was purely a misunderstanding, I never intended to hurt you by not trusting you, accept my apology letter for being ______ (mention deatils- Insecure/Selfish/Jealous/other) and forgive me.
I request you to kindly give me one chance to clear this misunderstanding.
Looking for your reply.
Yours Loving,
_________ (Boyfriend Name)
_________ (Contact Details)