Please accept my sincerest apology.
I'm so very sorry for what I did.
I was in the wrong when I said those things to you.
I did not mean to hurt you and now I regret it.
It was wrong of me to behave that way and I'm sorry.
Nothing I say or do will take that action away...
but now I want to make it up to you by apologizing.
I hope you can forgive me.
I apologize wholeheartedly.
I hope we still can be friends.
I'm ever so sorry.
That's my bad