She felt that Simon should seek to have a child of his own through normal means, and she could no longer help him realize that.
Simon completely missed the sense of loss in Daisy Willow's demeanor. Elena hadn't hidden anything, so as she conversed with Axel, both of them had heard her say, "That Old Li is quite capable. He got Carolline pregnant with a second child right after they held the wedding. Elena, Uncle Simon promises you that when Aunt Carolline gives birth to the little baby, we'll all go back to see them together, okay?"
"Sure, Uncle Simon is the best. I like Uncle Simon the most," Elena responded happily. Axel's siblings were also her siblings, and she planned to prepare gifts for her future brother or sister.
Simon smiled with pursed lips.
Liam, seeing Elena so happy, also said cheerfully, "Daddy, does that mean I can be a big brother too?"