The aura disappeared just as fast as it appeared. It was but a single moment of pure suppression but it had completely stopped the flow of battle. Each participant eyed each other warily, as if to determine if the others knew the origin of the aura, yet they were all equally surprised.
Lex considered making a statement. A simple one liner to let them know that he was displeased or that he would let the matter stay so long as they ended their battle. But the move didn't feel right.
As the Innkeeper, if he gave excessive explanations while in the Inn, it would still make sense since he had to provide an explanation to his guests. Outside, however, he did not need to explain.
Since he was playing the role of a powerhouse, no matter how down to earth he made his personality seem, some things would be beneath him. In such a situation, the fact that he supposedly flashed his aura at them was already enough of a warning. Giving further explanations would make him seem weak.