Zoey, although wanted to stay longer in the bath, couldn't as she wanted to spend more time with Cora Ma. Maybe, catch up with her because her best friend was in an accident two months after Matthew Xi had died in their previous life.
Therefore, Zoey could safely say she truly missed her best friend. Cora Ma's death gave Zoey the idea that Matthew Xi's accident wasn't just because he was not lucky enough.
After all, they died in almost the same way: a trailer truck, losing control of the brake, killing who was in the smaller car while the driver of the trailer truck was both in a desperate state for money. Hence, they could do everything — even killing people 'through accidents'.
Staring at herself through the mirror, Zoey picked up the small knife she had grabbed earlier when she headed inside the bathroom. She hovered her forefinger over the tip of the sharp knife, slowly pricking on it until it began bleeding.