I've got my mum hooked on this show. She's even been watching other MCU movies and WandaVision to better understand it. She prefers everything with Wanda and Vision in it so i showed her the Avengers movies. Having grown to love Thor, Loki, and Darcy through the Avengers and WandaVision she watched all the Thor films yesterday. I am loving how invested she is in the MCU now.
I think she was insecure. She also suspected him of being her son. But Rio told her that it wasn't him. I think she was only sure that it was Billy Maximoff.