cause yesterday when arohi gets trapped in the fire even thou she has her life at risk she saves not only her baba' tanpura but also that painting & cup which karan says mean a lot to him
i think thou he was mad at her cause she hurt him by unintentionally reminding him of a painful past may be he will think of her in a different light now
thinking that she was concerned for those useless lifeless objects when she could have been killed & now may be start to fall for her
seems like he has been hurt perhaps in love by a woman who used him & loved him for his money & now in arohi he will meet a person who values people & not their fame & money hence he starts genuinely falling in love with her