True . He did sense that something was wrong and he believed her when she said she was interested to marry him . Somewhere I feel he was too smitten by her looks that he didn’t want to lose her so he choose to believe she was happy . After her confirmation that everything was fine , she still had a sulking face throughout the Sangeet ceremony and she hardly spoke to him . He saw it as being shy and even after seeing her cry in his cousins room he ignored it .
Sai's position I completely agree. The reasons that u mentioned cud very well be her thinking because they never showed her monologue as I remember on why she agreed.
Samrat: ur take is interesting. But from his perspective he did ask her whether she was interested in this marriage and she agreed. And So I gave him the benefit of doubt.