Q. My husband was killed in a job-related accident, and I can’t get past the responsibility I feel for letting him go in to work that day, which was his day off. We needed the extra money, but I keeping asking why didn’t I say, “Stay home. We’ll manage.” How do I cope with the guilt?Who doesn’t have thoughts of “would have, should have, could have” when grieving for someone we love? It’s common t…