Megan would have loved to see Cressida. She really wants to be friends with her because of Draco and still feels awkward/bad about stepping on her toes in regards to Draco's birthday. She would have thanked her for coming and spoken to her for a bit though her present which, let's say she opened it later?, threw her through a loop though she definitely appreciated it.
Megan was thrilled to see Mrs. Weasley and receive a coveted Weasley jumper!