I was talking to my team member on an issue. He was putting in new statements every time I countered his previous statement.
I think I can't use "truth" for these statements because when I countered, then the previous and current statements were contradictory. "After-thoughts" would be right, maybe.
Our conversation looks like you keep peeling the onion to reach a core of onion (i.e., truth).
Me: Why you didn't do Task1
TM: I wasn't at my desk
Me: But you sent one email to 'X' where in I'm also in CC
TM: Because I need some more info on Task 1
Me: Then why are you telling me now?
TM: I got stuck in Fun-Friday activities in office
Is there an idiom/phrase for this situation?