I'm sorry about what happened in the past. Over time I have made you sad. I should not make you feel like that, it's terrible, I know and confess everything.
He wants to apologize for something that it occurred in the past. From time to time I make you regret. I'm not supposed to make you feel like it is very poor, I know and accept the wrong everything.
I'm sorry for what happened in the past the time that I have done, I am very sorry you don't have to feel it, it's bad for you, I know and accept all liability