The third point of view
Those chipmunks were getting on her nerves, they wanted her to age faster than her time.
Reina had waited for them, patiently. They had even dared to disguise their appearances - what kind of mother would she be if she couldn't identify her own children?
So the moment they came out of the arrival terminal, Reina had recognized them and they did too because they sprinted into a run.
And so the cat and mouse game began. Nonetheless, they gave her a hard time finding them but it also came as a relief to Reina- they wouldn't be kidnapped easily by the enemy.
But the kids underestimated her, she was able to find out Allen's location through the surveillance camera now monitored by her people.
Informed of Allen's location, she sashayed into that lunchroom to give her son a piece of her mind when she stumbled upon a scene that made her boil with anger.
