What a horrible mess. Treachery, lying and betrayal by her own family, forced marriage in spite of rejection and refusals, being held down by her ‘husbands brothers’!
Stupid, barbaric sharia laws.
She was still young, and probably missed her family, so she succumbed to sentiment.
An important piece is left out in the article: the Islamic practice of mahr, where the groom has to fork over money to get the bride. In theory, the money is the property of the bride. In practice, the bride's family often holds onto it. If the marriage doesn't happen, the mahr needs to be refunded.