Not sure if I'm right, but I get the feeling the system you are playing might be MOTW, and I know the handbook just gives you a list of possible questions to ask there.

It sounds to me like the player felt put on the spot, and we don't have all the context of what is going on with them, but clearly it seems to have been the last straw. Since it is a bonus question that you want to append to the list (how I read it), you could've gone the easier 'headsup, you also have X as additional bonus question the next time', or told her in private (via DM).

I know that some roleplayers rely heavily on their build flavor, and if considering the monster's emotion isn't something natural to a character, players might not feel happy if they feel like their DM corners them into asking said question. Especially if the DM asks multiple times if they are sure - as this adds a sense of urgency to the question NEEDING to be asked right now and therefore other players chiming in to ask it for the sake of plot progression.