Mother, I'm sorry you had such a tough life.
Mother, I'm sorry you had to be a teen during a horrible war.
Mother, I'm sorry that it has affected you so.
Mother, I'm sorry I can't understand your choices.
Mother, I'm sorry I carry this inner picture of you.
Mother, I'm sorry it should get between us so.
Mother, I'm sorry that I need to keep a distance.
Mother, I'm sorry we should have to fight.
Mother, I'm sorry we should have such deep differences.
Mother, I'm sorry you should be so disappointed.
Mother, I'm sorry.