Back then, Steppenwolf had invaded Paradise Island as if the place was uninhabited, and snatched the Mother Box.
If it wasn't for the fact that he was a coward who had fled as soon as he obtained the Mother Box, the queen would've died on the spot.
Luke had stomped on an opponent as powerful as that, and had even cut off his head as spoils of war.
Although Diana's account also included the other superheroes who had helped out, the queen could still tell who had contributed the most.
It was best to have such a powerful ally. She would be crazy to provoke him.
This advice was her last effort; she could only let nature take its course after this.
Looking at her daughter, who was looking into the distance, the queen made this decision.
For the next week, Luke had a lot of fun on Paradise Island.