Overnight visits

Some time ago my wife worked with a lady, we can call her Eva, who was divorced, and moved to another edge of the country. Now my wife had gone on an extended stay abroad, so I was home alone when the doorbell rang on a Friday night. When I opened, it was Eva standing there, with a small suitcase in her hand. She told us that she was going to an exhibition in the district, and had thought that it might be possible to spend the night with us. I told her my…