Is she mentally ill or what?

As Andrea was about to take a step towards her mother, someone tapped her from behind. She slowly turned around and glanced at Sean.

"Why are you crying? What happened?" he asked as he cupped her cheeks in his hand.

"Sean, my mother- look, my mom is standing over there," she turned again to look at her mother only to find her leaving the store.

She quickly ran after her, ignoring Sean who was calling out to her. Immediately she got out of the convenience store she found her mother standing by the roadside waiting for a taxi. Andrea smiled brightly with tears streaming down her cheeks. She walked closer to her in light footsteps until she was standing right behind her.

"Mom!" She called her softly.

Mrs Williams slowly turned around and cast a glance at Andrea with a puzzled look. "Excuse me, you must be mistaken," she said with a faint smile.