Do you mean more aggressive towards the game, that is, winning will make them play more actively because after winning they will have more money? This is also possible, and I do not know how much a break can help addicted players if they will still play until they lose everything. Moreover, it will be very difficult to take a break after winning, because they will have money and will want to continue playing while luck is on their side. A break can be done by players who play for fun, but for others it is something else.
The point of playing more aggressively is that when they win or lose in gambling, their emotional instability can lead them to play more aggressively, for example, by betting larger amounts than before. But what you said is also true.
For those who are addicted, once they win, it can be difficult to resist reinvesting their money. I agree with you; perhaps this break is taken by those who simply want to have fun, taking a long enough break from gambling.