"I don't know."
In other words, he didn't understand the situation and didn't have the right to speak on it.
Old Master Gao's mouth twitched, and he snorted, "It's just a bit of gossip, look how serious you are."
"Who doesn't have some troubles at home? While we're here gossiping about others, maybe they're at home gossiping about us too." Elder Xi definitely knew about the Feng family's situation. Besides, Feng Lu lost her unborn baby because of Han Qian, and even had to have her uterus removed. She's been living at the Feng family for a long time, not just a day or two. With her staying so long, how could it be that no one drops by the Feng family's house?
And once someone goes over, the fact that Feng Lu 'died' and then came back to life—even if they didn't know the details, how could they not guess something? Then, when they chat with others, a detail or two slips out—it's basically inevitable.
