Indeed, the person you've been conversing with has presented an astute observation of human behavior in relation to gambling. Betting is analogous to a moth being drawn to a flame. Despite the inevitable harm, it is irresistibly lured by the prospect of light.
The psychological trap of "just one more bet" is a potent one. It's akin to the infamous paradox of Achilles and the tortoise. Despite all logical indicators suggesting otherwise, gamblers believe they can catch up with their losses.
The subsequent regret is a fundamental aspect of the human condition. We often fail to act in our best interests, leading to remorse, which unfortunately is short-lived. It's somewhat similar to the phenomenon of cognitive dissonance.
"Just one more bet" really works for many gamblers so they are willing to use their money more than before. They think that by raising the stake one last time, they are betting it all but the result is not going their way. And in the end, it is the casino that takes all the winnings.
That is a condition where the gambler has a choice: to stop or continue. But most gamblers will choose to continue playing. After all, they said this was one last bet and no regrets whatsoever. But it turned out that in one last bet, the reality spoke differently because they all lost. It makes many people regret why they didn't stop immediately but instead decided to make one last bet before going home.
This is something that not only happens with gambling but it is very common at other activities, an example of this are video games, in which a person may want to play for some more minutes, minutes which then morph into hours.
Then it is important that people set themselves a time limit when they gamble, something which is trivial these days as even the most outdated smartphone out there should have an alarm and allow us to not gamble for a longer time period than what we intended.
Minutes morphed into hours because video games are captivating, but still it's addiction, if you like foods that contains sugar you will end up with diabetes, mixture of bitter foods and sweat foods are more healthy, to be in good shape this is the way.
Addiction doesn't ends with gambling only, it's everywhere, pressing my smartphone every minutes is addiction, dropping your phone and taking some hours off brings a new refreshment for your health and even the eye.