Ok, Dey was wrong. I never liked his pervy behaviour on BB right from the start. I'm not a supporter.
But, he realized that he'd offended the woman & apologized.
I think that actually he was trying reverse psychology on Aarti. He thought if he acted like her tickling was not bothering him, instead saying all those things would make Aarti back off from embarrassment.
As for SS, I think he's auditioning for a villain's role in Hindi movies in the future.
If Aarti's family cares about her, they should keep her away from that toxic guy. SS is bad news just like Armaan Kohli.