Initially, Dalia and Shane wanted to leave Astrix as soon as possible. But later both of them agreed that it was important to finish Scorpio's evolution first in order to check if something went wrong. They didn't want either temporary or even permanent damage to Scorpio or in the worst case Jason's soul world.
As such, Dalia finished everything neatly, after collecting the valuable equipment within their hideout.
Looking at Jason, who curiously inspected Scorpio's new evolution, with Artemis circling around them, she couldn't help but feel a little bit sad, as she cleared her throat to announce,
"Congratulations on Scorpio's evolution to a Radiant Sapphire Scorpion!"
Hearing Dalia congratulate him, Jason looked up, only to see her somewhat sad expression which caused him to understand the situation almost immediately.
Standing up, he hesitantly asked, "It's time for the two of you to depart, right?" which she answered with a simple nod.