Please don't make a rod for your own back by never leaving your dog alone, they need to get used to it, and they need their rest. Our dog is quite elderly now, but we used to put her in a lovely kennels, family run, clean and tidy, and she used to run in without a backward glance. I love my dog, but she is a dog, and I am a bit uncomfortable with people talking about their dog needing constant attention, duvets, sofas, cushions etc, our dog has a lovely comfy basket in the sitting room, and never goes on a sofa or a chair, thus when we have taken her away to the occasional dog friendly hotel we are confident that she is not on the bed in our absence. A dog is a huge commitment, and they give a lot back, but they live a long time, and unless you plan on never going abroad/staying with friends or family who are unable to accomodate your dog, I would recommend that you get him/her used to being away from you, a day at a time to start.