That's up to her own beliefs my friend. If I am "born jewish" and I convert to Islam, then I become a muslim. If someone is born Catholic but recognizes themself as Jewish, then they are jewish. If they don't have any religious beliefs but still identify themsleves as Jewish, guess what? Their still Jewish. If you identify yourself as being Christian, but don't follow Christianity, no one in their right mind is going you say "YOUR NOT A CHRISTIAN!!"
That's up to her own beliefs my friend. If I am "born jewish" and I convert to Islam, then I become a muslim. If someone is born Catholic but recognizes themself as Jewish, then they are jewish. If they don't have any religious beliefs but still identify themsleves as Jewish, guess what? Their still Jewish. If you identify yourself as being Christian, but don't follow Christianity, no one in their right mind is going you say "YOUR NOT A CHRISTIAN!!"