Maybe it's what got him attracted to her in the first place. He was drawn to that tiny ray of light after living in darkness for so long.
It was probably fated every time he met Ava. She had made her way into his heart little by little.
A lot of women had tried all sorts of things to get his attention, and yet they never succeeded. Ava never did anything, yet she had successfully managed to capture his attention.
He was attracted to Ava when he first met her, but never thought he would learn to love her. He always thought he did not have what it takes to love another person.
He listened to everyone when they said he was only good at business, that he would always lack emotion and be cold.
But as the days went by, he slowly realized that Ava was like poison that had slowly spread through his whole body, and he cannot escape from it even if he wanted to.