Clues

  1. The loved one was not human. 
  2. The loved one was a playing card. 
  3. The man won a large amount of money thanks to the playing card. 
  4. The playing card was taken away by the wind. 

Solution

The man played Texas Hold 'Em poker and went all-in (he bet all of his money). When it looked like he was going to lose, the last revealed card happened to be a queen of spades, which made him the owner of a great deal of money. The man took his lucky card and promised himself he would always keep it with him. The same night, while he was walking back home, holding his queen in his hand, he got caught in a gale and a strong wind blew the card away.