Welcome to SR......I'm glad you found us and I hope that you will be able to find answers to your questions here.
One year sober is a wonderful mile stone for your guy. It's HUGE. And he's doing what he knows he needs to do to stay that way. I understand how you would want to spend more time with someone you love but you want that someone to be sober.
A good way to work through your moments of missing him would be to make sure that you are doing something that is important for you.....maintaining and nurishing your independence. A hobby....exercising....taking a bubble bath....whatever makes you happy. Concentrate on yourself and allow him the space that he needs to stay sober. You'll both benefit.
gentle hugs