Before the bombshell allegations of sexual misconduct that led to Matt Lauer's firing from the Today show by NBC, he and former co-host Savannah Guthrie had grown close professionally in their five years of working together.
The 45-year-old morning show host, who made the announcement of Lauer's termination on-air last Wednesday, was "affected the most" by the news, a source told ET last week.
"She’s not herself. She’s visibly shaken," the source added, explaining that around the studio on Thursday morning, Guthrie appeared "sad, in deep thought and preoccupied" off-camera. "She is doing her best to stay upbeat and jolly on-air."
Guthrie and Lauer had shared the desk since July 9, 2012, when she took over for Ann Curry. Since then, the two, along with Al Roker, also hosted both the Macy's Thanksgiving Day Parade as well as the Rockefeller Center Tree Lighting ceremony.