____________ (Name of girlfriend),
Dear __________ (Name),
To the love of my life, you have not been happy with me for the past __________ (duration) as I have been not giving time to you. I know that the moment has been difficult for you as you did not have me along with you for sharing your things. I also agree that I have not been available to listen about _________ (mention details) but I have always been missing your conversations the way you open up with me and tell me your complete daily schedule.
I know that it would be difficult for you to forgive me but I request you to kindly forgive me and accept my apologies for hurting your feeling by ignoring you in the meanwhile. Furthermore, I know that you would consider your decision and I will be waiting for you.
Yours and only yours!
_____________ (mention your name)