My girlfriend used to ask me all kinds of questions like this, and i would tell her "It's a hypothetical situation. Nobody really knows how they would act until they are in that situation."

Then she would go on to make it an impossible question to answer by putting herself into it as a possible victim, whereupon i would infuriate her by repeating myself. In all honesty i couldn't say anything different, but it ceased to become worth the dramatics that then ensued...

So, there is one hypothetical question i can answer: if your significant other takes offense at honesty, would you leave her?