This is what they do, that’s their job. They would try to intimidate you and want to see if you have different versions of the story. For my Green Card, the officer didn’t let me breathe for a second with his questions. I almost freaking cried in front of him and my wife. He got me so confused, set some traps but thank God I had most of them right because everything was real. The only two questions I couldn’t get the right answers, my wife was there and correct me. It was just a name of main road in a place we used to live abroad and can’t remember the second one.
However, from what you said about your case, I believe you would be fine.