[ She had known that, but still, to hear of it in practice is upsetting a little. It's obviously what led to the problems in Shirou's life, as far as she can tell from this conversation. Because Zouken was evil, Sakura become a tool for him to use, and gained power to control Saber herself as well. Why it had not happened during the 5th War as she saw it she can't say, but it leaves her unsettled. ]

It must have been a difficult life, raised away from your family. Were you aware the Matou's were not your true blood?