Star magazine has reported that Shiloh, Angelina and Brad Pitt's 11-year-old daughter, was the one who attached a padlock to the 'love bridge', and on it she scribbled: 'A M P Z S K V'
The series of letters were symbolic of the large family. A for Angelina, and then all her children - Maddox, 16, Pax, 14, Zahara, 13, Shiloh, 11, Knox and Vivienne, 9.
Star explosively alleges that the 11-year-old purposefully left off her father's initial.
An insider told the publication that Brad is 'devastated.'
'Sadly, it may be a sign that the family is divided, with Angie and the kids on one side and poor Brad on the other,' the insider revealed. 'It's his worst nightmare come true!'
Psychiatrist Dr Carole Lieberman - who has not treated anyone in the family - told Star that Shiloh's claimed behaviour is a result of her feeling 'abandoned.'
'She's hurt and angry at her dad for what she perceives as his abandonment,' Dr Lieberman told the magazine. 'It's especially hard for young girls when their parents divorce, and they see one parent much less than the other.
Star also reveals that before this heartbreaking Paris trip, Shiloh was taking her parents' toxic divorce especially hard.
A source close to the family told Star, 'She's just not the same bubbly, happy kid she used to be, and I'm sure Brad sees the change.'
Brad and ex-wife Angelina are currently battling it out for custody of their children, Star claims.
'I wouldn't be surprised if he launched a full-out offensive in court,' an insider told the publication. 'He's angry at the way Angie seems to have turned Shiloh against him, and he's ready to hit back - hard!'
Brad and Angelina have yet to comment on Star's sensational allegations.