Alessandra Ambrosio is engaged to Buck Palmer after a near two-year romance. The supermodel, 45, announced the proposal via the couple's joint Instagram page on Tuesday, writing, 'I’d choose you in this life and every life. Ambrosio flashed her new diamond ring as the couple embraced, before posing in a heart-shaped ring of rose petals. Alessandra Ambrosio is engaged to Buck Palmer after a near two-year romanceThe supermodel, 45, announced the proposal via her couple's Instagram page with Palmer, 44, writing, 'I’d choose you in this life and every life. Magazine China, Ambrosio shared: 'I believe that [a] positive attitude and outlook on life can change how we see life and sometimes how other people see life.