Locke was stunned to silence when he heard that this person he was talking to was, technically, apparently dead, but that she just came from a time where she was still alive. This was bizarre.
"I, I'm sorry," was the first thing he said, the first thing that popped in his head to say because really, he didn't know what else he could say! This person he was talking to had just died!
He cleared his throat as he reigned all his thoughts together. Lily was dead...apparently...but she was also still alive. "Well, you can't let that happen, that's for sure!" at this, he strongly agreed with her convictions. "You know what's gonna happen now, so you can stop it! After all, no son should be raised without a parent!" Now he was just rambling. He was raised without his and he turned out pretty fine, he thought.
"Err...if you don't mind my asking..." he whispered to Lily: "How'd it happen?"