redvelvet and zobia: thankyou for your responses. In response to your question redvelvet, yes both Cousin A and B are in the west and have been born and raised here. Cousin B is also infamous for always expressing his discontentment at the idea of cousin marriages to everyone in the family.
Einstein1: I find it unfair that Cousin B told Cousin A one night that he loved her and the next day decided that this wasn't true. How can you confess you love someone and then decide you don't? I don't think she was wrong in confessing her feelings to him. She wanted to know what he thought before she went and told her mother about it. There is nothing wrong with that. She simply wanted an insight to his feelings in order to determine whether she should go ahead and speak to her mother about it and if there was any point in telling her mom. Not all daughters have a relationship with their mother where they can easily confess such things. If he wasn't in love with her he never should have said so in the first place. Seems almost as though he went on an ego trip that such a gorgeous girl liked him. It was wrong of him to use her feelings to make himself better.