Cara Delevingne's Sister Poppy Looks Tense After Troubled Model Revealed She 'Didn't Think I'd Still Be Alive' As Intervention Rumors Continue To Fly

Poppy Delevingne appeared tense and concerned during a solo outing after it was revealed her troubled sister, Cara Delevingne, said, "I didn't think I'd be alive at this age" following her thirtieth birthday last month.