DEAR AMY: My wife and I have a difference of opinion regarding our 20-year-old daughter. We would love your perspective. Our daughter is a sophomore at a university in Europe, and has recently started dating another sophomore (male) student. When she comes home for the summer, he plans to visit. In conversations with my wife, I have indicated that I will expect him to sleep in our guest bedroom and for our daughter to sleep in her room during his visit. My wife makes the case that they are practically living together in college. While I acknowledge this, I feel uncomfortable with explicitly al…
