I have to agree with Tink, Rusty. Stop focusing so much on what H is doing or not doing. Start focusing on yourself. You are still hoping that things will go back to "normal" but really you have to create a new relationship with your H. The old one is gone. Over.
As for being lonely when the kids are gone, what activities do you do for yourself? When my youngest went off to college, I joined a community choir, and I started taking classes at an adult community education center. I met new people, was having new experiences on my own, and I find that I quite like my solitude on the nights I don't have stuff to do.
Figure out what you like to do, that you haven't done due to time or family commitments, and take it up again. There is a lot of joy and living left for both of us to do, so now's the time to start.
Married: 25 years Separated: 5 years Kids: 2, ages 21 and 24 Me: 53 H: 50