His male ego has been hurt that a woman is telling his mistakes infornt of the entire world and he does not have any answer to it, he can only attack her or pass comments at her from behind. He can never dare to mess with her in person as he is too WEAK to handle her strength.
he is passing loose comments about a girl with other men and then he claims to respect women, if he cannot respect a girl behind her back, then there is no point of doing it infront of her.
Why is he not worried about a girl now, he was so worried about Srishty crying, but when Surbhi is isolated and is alone, he never even asked her if she is alright, he is influencing everyone against her, he needs to make a group to attack her, how spineless he is.