I am the same way. Its not that im less social, but I manage my social activities to maximize my nude time.
I go grocery shopping and run errands on my way home from work so I dont have to leave the house until work the next day. That way when I get home i strip down and relax.
I am more likely to meet friends for lunch on rainy days when I know I wont be outside anyway.
But in addition I go to as many nude resorts as I can so I am not isolated. Even though I go alone, the people are friendly and I can spend a few days with other people who share my desire to be nude.
So I suggest you maximize your errands and shopping so you can only make one trip, meet several friends at the same time on rainy days and then you wont feel bad for enjoying your nude time weather at home or at the resort.