"There was a...friend of mine. He died a little less than a year ago. It was a stupid, pointless death. I wasn't there at the time, but I heard about it later. He was just in the wrong place at the wrong time, got shot by Irathient terrorists."

Since Una was being direct, he opted to do her the courtesy of giving her the same. And it surely wasn't a shameful thing to want to save the life of someone important to him.

"So when someone says, hey, time travel is possible, you can't help but wonder..."