It's not like he expected it not to get out eventually, but it does make him second guess how well Lucrezia and Joshua covered it up. It's not like he has any concrete knowledge of what went on while he was dead. Investigating it seemed a little too morbid, even for him.

"I'm not asking, don't worry." She's already shared more than he sat down for. Could be another reason he offered anything at all. Besides, he's used to living with his curiosity.