He watched his son with an open mind. He wanted to see who he had become after his absence. He seemed to be fine, but he could sense that he had been through a lot.
Or, maybe it was his old age or probably his guilt that made him feel like a sentimental fool. But whatever it was, he was sorry to miss the growing years of his son's life.
"Yeah, I guess it would take more than a heart attack to take me down." Ethan expressed with a defeated smile. "But I am glad that I am still alive."
He was since it gave him the chance to see his son. Or else his secret would be buried with him. Then, no one would have probably known the truth.
Maybe it was the reason why he was still alive. So, he could still correct his mistakes and fix what he had done in the past. If that was the case, he was thankful for the chance.