answer: #Person1# tells #Person2# the Blacks got divorced. #Person2# is surprised because #Person2# thinks Mr. Black doesn't look like a two-timing guy.
documents: #Person1#: The Blacks got divorced. 
  #Person2#: Really? Why? 
  #Person1#: Mr. Black has been getting a little on the side. 
  #Person2#: Really? I am surprised. He doesn't look like a guy who'd ever cheat on his wife, does he? 
  #Person1#: No, he doesn't. Anyway, his wife found out that he has been two-timing for a long time. 
  #Person2#: Well, I am really surprised. By the way, have you done anything behind my back? 
  #Person1#: No. The only thing I've ever done behind your back is zipping you up. 
  #Person2#: I like that joke, but I hope it's true.