I think we are going through some of the same things, possibly a normal by product of piecing?
What could he do about going out for a beer that would make you feel better? Knowing where he is, who he is with, when he'll be home, etc.? If you are able to pin point what you need to feel secure then you can let him know in a non-accusatory way: I'm glad you are going out with your friends, but if you could...., it would greatly help me, I'm still getting used to us being us again. Do you think that would help? Is he okay about giving you reassurances? Or does it annoy him? If it annoys him, ignore my advice!
I understand about the evening and falling asleep thing. At least you are wise enough to get out on your own, I'm a slow learner there. Does he like to sit and talk at night? What can the two of you do to relax together or just hang out? H has been working the 14 hour days here, so I'm stuggling with this too. And it is something the T keeps telling us, we need to build it in to our weekly schedule, couple time. When you go out just the two of you, it sounds like you reconnect, do you get to do it weekly?
Enjoy the weekend off together. And tulips! I'm jealous. I'm looking at snow and 4-6" more tomorrow. Ugh!