Coz he was not shocked or something when he found himself in Vatsal Vila and on top that, the red rose!
The whole accident was planned by him, he is keeping an eye on everyone in that house only to get Neelima.
As Vihaan said, he looks like a shareef banda but i doubt he is shareef,
I know Aarushi will told Neelima to give him a chance coz she still loves him and he wants her back but i have a feeling he does not love Neelima
I dont think he is a good guy :-(