Everybody makes mistakes with friends. A real apology is not only the word "sorry". It has three parts: what you did, how it felt for them, and what you will do now.
Say what happened
Be clear. Do not hide.
I am sorry I forgot your birthday.
Show you understand
Name the feeling.
I know that made you feel unimportant.
Say what you will do
A promise, small and real.
I will write it in my calendar this time.
Do not add "but"
"But" takes the sorry away.
I am sorry, but you were late too. (Not an apology.)
Give them time
They may not forgive you today. That is allowed.
I understand if you need time.
Words to remember
- apologise — to say sorry
- forgive — to stop being angry
- promise — something you say you will do
- understand — to know how someone feels
Questions & answers
Q: Is "sorry" enough?
For a small thing, yes. For a bigger thing, add what you did and what you will change.
Q: What if they do not accept my apology?
Ask what would help. Then give them time.
Q: Should I apologise if it was not my fault?
You can say, "I am sorry about what happened" without taking all the blame.
Q: How do I apologise in a message?
Short and honest: "I am sorry about yesterday. I should not have said that. Can we talk?"
Q: Can I apologise too much?
Yes. One clear apology is stronger than ten worried messages.