Aria and Lyod returned to the Enchanted Forest after receiving instructions that the gate leading to the final trial was there. They didn't know where it was, but they still obeyed.
Before that, Aria had sent a message to her father that she had succeeded in resurrecting her mother according to her promise to her father. Not long after, Cecillion sent a bat-eagle pet to fetch Trixy and brought the princess to where Cecillion was.
Aria felt a bit sad and disappointed because it wasn't Cecillion himself who had picked up Trixy. On the other hand, Trixy didn't mind at all, as if she was used to her spouse's weird decisions.
"Why didn't dad pick you up himself?" Aria thought her father loved her mother so much that he almost destroyed the dark fae race to avenge Trixy's death.