I finally integrated the new dog in with the others. No one has stepped up to take her. I was afraid there might be some confusion, but they seem to like playing together.
Also, I have kind of fallen in love with her. Now I have created an even more weird setting that will be hard to undo.
Since I am living away from them, I need to drive each morning and evening, sometimes twice in the evening to let them out. Of course, now there are four, instead of the already to many three.
Everyone who does not have a dog says, "Get rid of the dogs and take your life forward." This is not so easily done. One becomes attached.