What I took away from this experience is how the mentality of gamblers can change after a win. The thrill of success often leaves us wanting more and in this case it seemed like my friend was caught in that cycle, as I was feeling before too and he was unable to honor his word probably because he wanted to keep increasing his gains and bet more. It's a reminder that the brain is never truly satisfied when gambling, there's always the desire for more. I believe that friend deserves an advice, but I don’t want to embarrass him myself, is there a good way to talk to him without making him feel that Im indirectly asking him for the money he promised me?
When a gamblers bet in gambling, he is very excited at that time, he wants to win and at the moment, when he wins the bet and is in a healthy brain, he regains normal consciousness and at that time he forgets the previous words. Although the gambler remembers those words, but they are basically not willing to keep their word.
I will agree with you that no one can ever be satisfied in gambling. Many may say that they are controlled gambler, but when they bet and wins, it is very difficult to keep his words. Although some can do that very easily, in most cases it will not be easy to do. It is not that everyone does not keep his word after winning in gambling, but it is natural for those who think that they have to give something to keep their word. But many gamblers don't want to keep their word after winning. Those who do this kind of work bring out their individuality.