[ Not really a fair question, but he knows Lan Wangji is just asking to make a point. Maybe he always brings up his family because it's the one thing they have in common, or maybe it's the one thing he knows will get to him. ]

Exactly what you think. Name it and I've done it. [ Let's not get started on what he would have done with Matthias' power. It's a slippery slope, and he's trying to get something across here. ] You can see how well that's worked out for me. Write this one off before you get caught up in a fantasy where your sacrifice means something.