The TT ends when you say it does. If you draw a line in the sand and say no more and are willing to pull the plug. But as we are in the R forum my guess is that is not what you are thinking.
I have a question. Did this new info come from you asking the question and him answering it? ; Or was it a thing that came out of a conversation and he has had multiple opportunities to tell you this meaningful info prior but didnt?; or was it a third option where he just told you as he just remembered it now. All very different things, One deceitful, one trying to come clean with new info they just remembered, one a direct answer to a new question. The question is do you think the answer was deceitful.?
I am one that wants a full answer when I ask a question. No holding back details or things that might potentially hurt. Iíll even ask follow ups to make sure I get all the context I need. If later something drops that they avoided, then I have major issues.
All TT's hurt and believe me my wife was the master of the slow play. But not all TT is the same...