My wife worries too - I imagine everyone's spouses worry. Similar to Bustanot's story, my wife rode along with me on my route when I first started. It wasn't a deliberate, let-me-alleviate-your-worries ride, but it did help. She hasn't ridden with me on my current route, but we have driven that way often so she knows the road conditions. And I keep trying to make my route safer - e.g., I currently take a road that has very little traffic, but has a steep hill instead. We have driven that road too ..