It depends in one person in how he will face the situation, but in your friends place, because of several attempts of winning and he reach long period of time of winning, for him it is a challenge to succeed the game, he’s not only into the prize that he will get but the satisfaction in his self in winning. And that’s one person’s traits not only in gambling but in many aspects of life. The more it is hard to get the more the person get hook to achieve something or anything.
But he must know how to look deeper of what are his actions, he must learn to study if he is really earning or having a deficit. He must see and learn really how to play one game so he will win or atleast put back his capital, though gambling is more losses than winning, and I am not exempted of it.