answer: #Person2# deduces the reason why Tom divorced his wife is Tom's bad habit of gambling. Gambling makes people addicted and ruins themselves in the end.
documents: #Person1#: Have you heard that Tom and his wife divorced?
  #Person2#: I didn't hear that. But I can deduce the reason.
  #Person1#: Really? Say it!
  #Person2#: Tom is a kind guy, but addicted to gambling. He spends all his time gambling in the casino. And his wife can't put up with his incessant gambling any longer, so she divorced him. Is that right?
  #Person1#: Yeah, quite right. Gambling broke up a happy family.
  #Person2#: Yeah! Gambling is often a curse. By gambling we lose time and treasure, two things most precious to a man.
  #Person1#: Besides that, many people took to gambling and got in over their heads, and gradually ruined themselves.
  #Person2#: In a word, gambling is a vice. We should be away from it.