Thank you very much for all the replies. Today, for the first time she was needing to be left for an extended period of 3 hours. My hubby assured me she would be fine left out, and she was. Nothing destroyed, no piddle messes (but she's been a breeze to house break so that was not my concern), and she seemed much more content and not stressed when I returned. She just wants to be where Moka is, so I guess this is our new routine.