Brandi Glanville Says She Became Depressed After Split From Eddie Cibrian

— -- Brandi Glanville has opened up about the dark days following her split from Eddie Cibrian after his affair with LeAnn Rimes.

"I trusted him completely and fully," she says in a clip from a new episode of "Famously Single," airing Tuesday. "Then I went to visit him on a movie set and for the first time I felt like something was going on with the person that he was acting with."

Soon after, Us Weekly broke the news that Cibrian was having an affair with his co-star, Rimes.

"I go to the store, get the magazine, panic attack, crying. It's on every cover of every magazine. It's there. It's real," the former model recalls in Tuesday's teaser. "I laid on my closet floor and just sobbed."

Glanville ultimately pulled herself together for her two boys.

"You buck on, so I did," she says, wiping away tears. "I had a couple years of depression. I started drinking too much. I had to up my antidepressants. I cried all day, every day, and I lost weight. But I had to take care of two kids. It wasn't about me anymore. I knew what had to be done."

A new episode of "Famously Single" airs at 10 p.m. EST on E!