This may sound odd to most of you, but although I had plenty of chances, I never moved out of my parents' house. My dad wanted me to save money. Plus I had a wonderful job, and travelled constantly, all over the world. i had a terrific relationship with my mom too. My parents were rather liberal in certain aspects. They trusted their kids. They loved all my friends and our home was an open door to every race, creed, sexual orientation, everyone. In fact, my friends practically lived at my house. My brother and I never had curfews, as long as we kept in touch, I was never grounded. We always had an open, honest relationship and I loved being there. I had my own space and they rarely bothered me. That's one of the main reasons I home cared both parents during their illnesses until I no longer could do it. I owed them the respect they gave me.
PCB, it sounds like your realtionship with your mom is similar to mine. I'm going to say honestly, that it isn't going to be easy. Now that my mom, my best friend, is gone, the lonliness is sometimes unbearable, just to be able to talk. But even if you do have to move farther away than you want, your life is now with your husband and you have a beautiful future to look forward to. I'm sure you'll be talking to her on the phone everyday. And I'll bet, she'll miss you terribly too, but wants you to be happy and realizes that you're starting a new life.