Oh, I knew. She was all alone with Vanja during the day, from when I went to my office until I returned, she felt lonely, and she had been looking forward so much to these two weeks. Some quiet days with her little family gathered round her, that was what she had been looking forward to. I, for my part, never looked forward to anything except the moment the office door closed behind me and I was alone and able to write.
Does this mean "she was alone with Vanja from the time I went..."? "Once I got out to the office, she was alone?"