Prior to the midweek clash, Tuchel told reporters PSG's riches did not make the club Champions League favourites.
Tuchel was pressed on those comments again after PSG twice recovered from a deficit to earn a point against Napoli, and the German boss was annoyed with one particular journalist.
"I already told you... Yesterday [Tuesday], you told me we were the favourites and I answered you we were not," Tuchel said in the post-match news conference. "What? But you have to believe me because it's like that."
The journalist responded by asking: "But what about the several hundreds of millions euros you have invested to win the Champions League? That's a bit strange to say that then no?"
That drew a prickly reply from Tuchel, who said: "Wow, okay that is your argument... But our conversation is a bit strange too. We are not at a restaurant!
"You just asked me a question, I give you my opinion and you have to accept that opinion no?"
The exchange finished with a "yes" from the reporter and "ah, okay, good" from Tuchel.
Do not expect the pair to share a candlelit dinner in the French capital any time soon.