He didn't mean to scare her. And, surely, wasn't going to hurt her. Just wanted to attract her attention, since Ellie clearly got distracted by the books on his shelves, judging by the way her gaze wandered over to them and the fact that she didn't hear him even as Martin called her name.
Besides, he just couldn't resist touching her, now that she - unintentionally, of course - crossed the line and got within his reach.
She was his daughter, after all. And that was the strangest thing, because he remembered every moment he spent with his children, every their step that he witnessed, every achievement and every mistake. Those memories were storaged carefully in the special part of his memory and were revisited by Dr Whitly quite often during the time of his impresonment.
And, of course, he remembered the first times he touched them, the first times he's held them, those small bundles of joy and bright future, wrapped in soft pink flesh. Remembered the happiness and pride and tenderness that blossomed in his chest at the thought of holding that new, only just welcomed in this world, life. New person. A person he's now responsible for and whose life and soul were now intertwinted with his own in the most close and intimate way possible.
Yet, with Eloise, he had no such memory. Nothing to hold onto on particularly nasty days and nothing to relive and cherish during the good ones.
So, naturally, Martin wanted to absorb as much information as he could from this visit, feed up his senses and storage enough memories to last until her next visit.
But the contact - or, rather, Ellie’s reaction to it - brought not the desired satisfaction, but pain.
No child should be afraid of their father. No father should see the fear in his child’s eyes, directed at him.
But there his newly found daughter was, staring up at him with wide eyes, her stutter so violent that she couldn’t even get the words out - in a detached manner Dr Whitly wondered how and when she developed it, as it clearly wasn’t just a one-off - and her body all but scared stiff from his one, simple touch...
“Oh, I’m sorry,“ he let go immediately, taking a step back to give her space - a sense of safety he couldn’t provide (yet) - looking as apologetic as hurt by her reaction, but hastened to ask - plead - his gaze darting between Ellie’s face and the door behind her back almost panickingly, “But, please, don’t go! I... I didn’t mean to scare you.“