answer: Tom is unhappy recently because Lily broke up with him. Steven invites him to do some sports to shake out of disappointment.
documents: #Person1#: Tom, you look thoughtful and unhappy recently. What's wrong with you? 
  #Person2#: Lily broke up with me last week. In fact, she dumped me. 
  #Person1#: Why? I mean, why did she part company with you after seven years together? 
  #Person2#: She said it was because we had very different ideas about life. 
  #Person1#: Do you believe her excuse? 
  #Person2#: Of course not. I knew she had fallen in love with another guy. It is difficult to see her move on so quickly. 
  #Person1#: Come on, buddy, cheer up. Why not do some sports with me? Violent exercise might help to shake you out of your disappointment in love. 
  #Person2#: Thank you, Steven. You are really a good friend.