Lucas Brighton is not getting any younger and is also always sick these days. His sister already begged him to tell Ash about his illness and make him go back home but seeing that Ash is now happy with a woman in his life that he could trust his life with he warned his sister not to tell his son and let him be.
He watched Ash suffer over the years because of his love for Amy and now that he finally moved on and is happy, he doesn't want to ruin that. He will die alone bringing all the bad decisions he made in his lifetime along with him to the grave.
He still goes to work as normal as the CEO and Chairman of Brighton Industries, Inc. even though there are days that he doesn't feel good. He wanted to make the company prosper more for that is the only good thing that he can give his son when he dies someday and he is preparing for that already.