I'm kind of an in-betweener, too. My husband and I are both professors, so we work full-time, but are flexible about when and where we work, except for our respective teaching days. I am home full-time in the summers (I'm teaching strictly online this summer), plus the 6 weeks or so we are off of school during breaks in the academic year. I did put off getting a dog until I made tenure so I wouldn't feel such a high need for face-time at the office. It was very hard waiting, but it was the right thing to do.
So Daisy does have 6-7 hour days alone probably 3-4 days a week for about 8 months a year, on average. (Wow, was that specific enough for you? Probably way more than you wanted to know!) Many days, my husband or I are working from home for all or part of the day.
Daisy is a very independent little Cavalier, which I know is unusual. Even when we met her at the breeder's as a 10 week old pup, she was generally off by herself after meeting us. She'd come up to us for loving and fun for a few minutes, and then she'd wander off alone and lay down. It kind of worried me because I was so looking forward to the velcro Cavalier personality. However, in the spirit of things working out the way they are meant to be, that characteristic also makes Daisy a very good fit for our family since there is not someone home with her all day every day. If a dog had separation anxiety, that would be very upsetting and guilt-producing for me.
Daisy loves me and our whole family and follows me from room to room in true Cavalier fasion when I'm home, and always lays down somewhere nearby where she can keep her eye on me. She lays on me when I'm watching TV on the couch (until she gets hot, that is), and she jumps up for cuddles at least a couple of times a day, so that makes me happy. And, of course, I go pick her up for cuddle time many times a day, even if it's not her idea! She always graciously agrees and humors me!
After her initial craziness around other dogs at first meeting, she doesn't seem very motivated by their company. We've had 3 foster dogs and she really could take them or leave them. It was funny, our last foster dog's new owners emailed me a picture of him laying intertwined asleep with their cavalier on the couch and he had a wonderful little smile on his face. Not once in the 6 weeks we had him, did Daisy and he ever lay on the same couch or sleep anywhere near each other. She just wasn't interested. She's a funny little girl!