Yet I was thinking is it the withered flower or the bud that never had a chance to open? remember his dialogue about he is cold hearted but 'shayad ek dhadkan baki hein.'
I personally felt he became orphan quite early making him unable to open this bud. The seed seemed watered to the bud and when the bud has to open,other life facette probe to him! He seemed he became an orphan and therefore let the bud froze. He has to struggle to live this life and take care of his 2 buddies who he felt very protective towards. From child itself,he is not only positive towards life but he has to show his 'boldness' to survive. On streets,he has to struggle for a living and when he was bought home,he felt that the bud could open because he was going to receive back family warmth!
But no,money came in and Mr Singhania kept this 'boldness' in his character alive! Constantly reminded that in order to receive something,you have to give another thing. Shrewd Singhania gave him shelter and material success in return of life indebtness to him! Arjun did not take it wrongly,he genuinely love his family because he knows without money,life would have been different and he was still with his buddies too, In this material pleasure,he is ready to sacrifice his life for them,ignorance of the shrewd mind of Singhania, Mikha'il developped a cold war towards Arjun,making him reminded he is not blood related and he is a stranger. He receives sisterly warmth though and she is genuine but still he was so blinded towards duty that he never open up. He finds happiness being himself with his friends but the real happiness in him actually open when someone has come and melting him. Waters the bud by her innocence and chirpiness! Feeding the bud by her spoilt and happy go lucky character! Regularly felt the breathe and windblow by her hilarious fights. Her touch is like the bee who has come for pollen and when she actually slept in his chest,the full of warmth and heartbeats of Arjun open this bud! He was so happy and pranked to Arohi,something he does not do with buddies! He liked to see her face reaction but then got hurt that the very same person who is spreading fragrance in him thinks so low and cheap of him! He could not bear it,he drinks to sober because he is hurt and he could not control himself to make the same person to understand him! The sorry flower scene from Arohi just acts also as an outer picture! The bud is growing and turning in a beautiful flower and getting flower from her actually means a lot! Some manifestation of happiness and gazement that is in Arjun's heart!