He doesn't even realize that he is the one who should be blamed for creating all these confusions.
1. If he had such strong feeling against Amita, why did he send the proposal to her house? He could have easily confronted his parents and spoken the truth. Why spoil someone else life?
2. He had so much time before the wedding but still he chose to be quite. Being a righteous guy he should have tried and expressed his true feelings to Amita.
3. If he did not like Amita, why ask her to reduce weight? Do you expect anything from strangers?
4. Why did he drop and pick her up from the gym? You can take a horse to the pond but can't force it to drink water unless it wants it. Similarly no one can force you to do a work unless you yourself want it.
5. Why gift her a tea pack? Whatever his intention may be, he did give her a gift wholeheartedly and gave false hopes to Amita.