"I spoke to Blaise," she continues. "He told me that, originally, you were only taught it so you could protect yourself from Tom's Legilimency. What he didn't know, though, was that you've been using it to push pretty much everything else aside for the last several years. I know you mentioned it to me, but I didn't think much of it. However, given the current circumstances, I did a little research. And lo and behold, using Occlumency to shield one's mind from feelings like fear, regret, pain, or grief is a very rare practice. While you implied that you did exactly that to survive your time as a Death Eater, I didn't realize the concerningness of it."