I can't explain why that action was so disturbing to watch for me but out of all the horrible things that happened in the past few episodes, this was the one thing that really got to me. I think it would have been fine (if a little petty) even if he emptied the entire spray can had he just done it normally, but the slow and deliberate way he did it with that venom in his voice and the way it just kept going on and on and on... it just felt so violent. It was ugly, and intense, so much so, that even he broke down after that. I can't believe Hina and Sapna were actually laughing cuz it was obvious, everyone else was taken aback.
There is so much hatred in that guy at this point that I genuinely feel that he needs a therapist.