Batman nodded in agreement. Tim may not have been his son, but Bruce cared for him just as much, and seeing him suffer, in such a painfully familiar way - it frustrated him that the only thing he was able to do was sit and wait until Tim was ready to come to him.
"He'll be glad to see you," Batman repeated, regarding Clark. "He's doing better now, but - he spent a month at my house afterward, doing what can only be described as brooding." His eyes shifted Diana's direction significantly. He was famous for brooding; she could get away with it. The last time Bruce had seen Clark brood was when Jonathan Kent had died. "You're better with words in these situations than I am," he admitted, only slightly begrudgingly.
Circling the building, he lowered the wheels and touched down onto the nearly empty street, keeping them veiled from other drivers until they'd turned into the alley beside the Wayne Foundation and driven down into the subterranean parking lot. A signal opened a special entrance that took them toward the satellite Cave, where he parked and got out.
"Lets go up," he said, heading for the elevator that would carry them toward the Penthouse. The Cave had been empty for some time, and though the lights came on at their appearance, it was cold and relatively uninviting. He pulled off his mask and held the door, intently studying the paneling as though it were of great interest.
Once the doors were closed, he answered her question. "He's thirteen." His attention shifted from the walls to the mask in his hands; he wasn't sure why he found it so difficult to look directly at Diana while he said this, but it seemed much easier not to. "Proud; arrogant; angry." Bruce smiled faintly. "Beautiful. Brilliant. I just found out about him a few months ago, he came to Gotham to find me. He's..."
Bruce hesitated. Maybe this was why. "Talia al Ghul is his mother. She's been training him to lead the League of Shadows, and wants me to train him to be Batman. I'm sure you can follow her intent. The things she's done to him are monstrous, and it's been a... struggle." he said, for lack of a better word.
The elevator doors swung open and Bruce stepped out. "Something to drink?" he asked, heading for the kitchen for water.