Finding and sustaining love takes real work. It takes intention. But we never know when life is going to throw someone important in front of us. Then we’re forced to confront a big question: Is my heart open to love, or is it not? The story of Roz and Ralph is all about that: being open — remaining open — across six decades, multiple states, one bowl of pea soup, and a whole lot of letters. Email us at loveletters@boston.com.