Dear [Your Love's Name],
I hope this note finds you well. I’ve been thinking a lot about our recent moments together, and I wanted to take a moment to express how truly sorry I am. I realize that my actions/words may have hurt you, and that was never my intention.
You mean the world to me, and it pains me to know that I’ve caused you any discomfort or sadness. I cherish every moment we share, and I want to make things right between us.