Sorry, there really is no excuse for what I did. I promise I didn't have any bad intentions and can only apologise. This is completely and totally my fault, I'm sorry. I feel horrible and never meant to upset you, please accept my most sincere apology.
Say that you are sorry and you will take care of such things in the future. Say that you want to relive the old moments with them and how much you love them. Along with that add a few apology songs. And, then you can add few songs which are your partner's favourite.
Say you're sorry or that you apologize. Actually use the words “I'm sorry” or “I apologize.” Name or specify the infraction you're apologizing for. Show you understand why your actions were harmful and hurtful, and the effect it had on the other person.
Sorry, there really is no excuse for what I did. I promise I didn't have any bad intentions and can only apologise. This is completely and totally my fault, I'm sorry. I feel horrible and never meant to upset you, please accept my most sincere apology.
If all else fails and you truly don't understand their situation, make sure to get across the fact that you're at least trying to process it. Work with statements like “I can't imagine what you're going through” or “I've never been in your situation, but it must be incredibly difficult.”
To write a heartfelt apology letter, focus on the recipient's feelings and experience. Avoid inadvertently using the letter to justify yourself and your perspective. You can achieve this by writing a clear and concise apology for the specific offense and acknowledging your responsibility in the situation.