Why doesnt meg hug mrs.whatsit when she appears on ixchel?

Meg doesn't hug Mrs. Whatsit when she appears on Ixchel because she is overwhelmed by the situation and the emotional weight of their reunion. The circumstances are tense, and Meg is still grappling with her feelings of fear and uncertainty. Additionally, the moment emphasizes Meg's growth and the need to confront her challenges rather than retreating into comfort. This highlights her developing independence and strength as a character.