Their relationship timeline:
* 2008: They began dating after meeting on the set of "Twilight."
* 2012: Stewart was photographed kissing Rupert Sanders, the director of "Snow White and the Huntsman."
* 2012: Pattinson and Stewart broke up briefly after the cheating scandal but eventually reconciled.
* 2013: The couple broke up again for good.
The breakdown of their relationship:
* Cheating scandal: The infidelity of Stewart with Sanders was the primary reason for their split. This event caused a significant public backlash and strained their relationship beyond repair.
* Media scrutiny: Both Pattinson and Stewart faced intense media scrutiny throughout their relationship. This constant attention and pressure likely added to the stress they were under.
* Personal differences: There were also reports of personal differences between the two, including conflicting career ambitions and contrasting personalities.
Aftermath:
* Both Pattinson and Stewart have moved on with their lives and careers.
* Pattinson is now married to model and singer Suki Waterhouse.
* Stewart is currently dating screenwriter Dylan Meyer.
While the exact details of their breakup remain private, the public narrative largely attributes the end of their relationship to the cheating scandal and the overwhelming media scrutiny they faced.