Why did Charlotte the Duchess of Monako was described as the saddest bride ever ?

Charlen said that a lot of her sadness was down to being homesick, despite her brother Mike Wittstock and his family also living in Monaco.  She made three attempts at escaping the principality. Charlene “was in tears throughout the wedding ceremony which did not look like happy tears. She reportedly recoiled when the groom attempted to kiss her at the wedding.