answer: #Person1# doesn't know why Mark often asks #Person1# for advice. #Person2# guesses he might like #Person1#.
documents: #Person1#: I don't know why Mark often comes to me and asks me for advice. I smell some rat in it. 
  #Person2#: He is sly. He is actually angling for compliments. But he may have got the crush on you. 
  #Person1#: Nonsense! There's no indication that he's in love with me. 
  #Person2#: Keep your fingers crossed. He may pop the question one of these days.