Because It was not his place... Rashmi defended him because thier relationship was questioned asim defended when himanshi was called out bitching about someone else even after repeated warning and yes she was...
Besides it was not his conversation, not his fight and not his issue. Two women were talking like adults shorting out thier differences he disrespected both thier wishes to not to come in between didn't let them talk or even speak and unnecessary dragged someone's parents who had nothing to do with the conversation... The someone who was his friend and who was in clear state of shock. Not the same thing.