We've all TT'd. That's why there's an abbreviation for it.
Are you saying when the question comes in, you lie because you don't want to kill the mood? Just trying to get clarification.
Someone here said recently, I think, they have sort of a three-second rule for telling the whole truth. Take a breath and say, "Sorry, that's not totally true. I didn't want to hurt you, so I instinctively fell back on my old ways of fudging the truth to protect you. I'm sorry. The hard truth is..."