who did kristen stewart cheat on robert pattinson with

Kristen Stewart was publicly reported to have cheated on Robert Pattinson with director Rupert Sanders , her married Snow White and the Huntsman director, in 2012.

Quick Scoop: What Happened

• In July 2012, photos surfaced of Kristen Stewart being affectionate with Rupert Sanders, who directed her in Snow White and the Huntsman.

• At the time, Kristen was in a relationship with her Twilight co-star Robert Pattinson, and Sanders was married to model-actress Liberty Ross.

• Kristen issued a public apology acknowledging a “momentary indiscretion” and saying she had hurt Robert and jeopardized their relationship.

• Rupert Sanders also released an apology to his wife and family, expressing remorse for the pain he had caused.

In short: when people ask “who did Kristen Stewart cheat on Robert Pattinson with,” the widely reported answer is director Rupert Sanders, linked to that 2012 on-set scandal.

TL;DR: Kristen Stewart’s cheating scandal with director Rupert Sanders in 2012 is what led to the highly publicized breakup turmoil with Robert Pattinson.

Information gathered from public forums or data available on the internet and portrayed here.