Frazer Harrison/Getty Images for Race to Erase MS
"I am shocked and saddened by reports that Camille was in an abusive relationship," Armstrong told E! News exclusively.
"It takes a tremendous amount of courage to take a stand and report abuse. Camille made the right choice and I am proud of my friend," she added. "She has my love and support during this challenging time with both her health and her personal life."
Earlier this week, the former reality star was granted a restraining order against her ex-boyfriend Dimitri Charalambopoulos after she claimed that he beat her in a Houston hotel room.
Camille, who was recovering from cancer surgery just days prior, explained in the court documents that Dimitri grabbed her by her hair, smashed her face and pulled out clumps of hair during the physical altercation.