A mistake

Rubbing her backhead where Shawn smacked, Aarvi made a super sad crying face at him.

She is a guardian of Tia over there as she is her employee but her priority is Dax when it comes to Tia and Dax. So she prioritized his feelings and decision completely forgetting about Tia's life.

She was going to terribly regret her decision if Tia had somebody she likes. She cried in her mind for being careless.

No, she wasn't crying for letting Tia be with Dax all night, but thinking Dax might be affected by the rejection. 

He was finally letting his guard down and made his mind to date a girl seriously, so least wanted him to go back to the same state of 'Most of the girls are trash.' 

'Wait, what did he like about her?' Aarvi curiously thought before she glared at Shawn.