"I was alone at home. My husband left me for his business trip and my son didn't spend time with me. I was upset when one of my guards told me who was having lunch over here about you having lunch alone. I wanted to call you but then I thought to surprise you and have lunch with you."
She wasn't lying. Her guards were actually having lunch when they saw Serene. And the thought of how her guards know about Serene, she explained that they saw her with her last time in front of this restaurant.
"That's bad. Aunty must be really bored alone." Serene said. She sincerely thought that aunty must be really lonely that she actually found her, a stranger.
