Did you see that string of emails published from H_nter's laptop between H_nter and his father?

In the email chain, H_nter was yet again in a rehab center for s_x, alcohol and drug addiction. He emailed his dad and said that all he wanted was for people to love him and respect him, but no one did. He was sadly lamenting to his father that due to his drunken and drug-fueled binges where he apparently was having s_x with his underage niece and other underage girls, he was now being banned from having his female young relatives over without supervision according to his ex wife K and his brother B's widow. He was so sad he couldn't be with the nieces alone. His dad responded that he loved his son and that his son had inherited 'his sickness' from 'mommy and me'.

Which sickness was he referring to, I wonder?