Regardless if you playing for fun, or playing for the profits, if you play beyond the normal level you are expected to play, and you get so involved, you can become addicted, same ways if you win or you lose in gambling you can still be addicted.
What matters is how you gambling, and not or what you get from gambling, whatever you do too much is already addictions, when it becomes uncontrollably done multiple times
Some will think losing in gambling will make you want to stop gambling and not get addicted but that’s not how it works for many gamblers. For gamblers that still get addicted even when they face many losses, they’re those that always want to chase their loss and not give up to accept loss to come back another time again. Those that are winning and still addicted is as a result of greediness and not satisfy with little profits and aim for bigger wins, not knowing that they’re risking there little profit, their capital and risking getting addicted more.