Rake over the ashes/the past disapproving informal
To keep talking about or bring up an unpleasant event or experience in the past with somebody.
Our bankruptcy happened years ago. I don't want to rake over the past.
We've already done with that stupid project. Why are you raking over the ashes?
When I came across her, she raked over the past, the one that I just wanted to hide.
The verb "rake" should be conjugated according to its tense.