"I've had a rough few months, but I'm doing Ok. I'm exploring new opportunities, and I try to participate in charity events as much as possible. It's very important to me to focus on others, not just myself. You look at children with cancer and you think, 'Wow, it really puts my own problems into perspective.'" Twilight star Ashley Greene is doing her bit for pediatric cancer research after losing her pet dog in an apartment fire two months ago.