Hi Dainty. I'm not a regular poster. I mostly just read and take notes. However, I have some information that might be useful. Since I plan to move to the Wilmington area one day in the hopefully forseeable future, and fit into the same approximate demographic, I, too have wondered where one might go for dancing and to meet nice people. I stumbled upon Contra dancing, a type of English folk dancing that looks to be a lot of fun I don't have firsthand knowledge of it, but it's held downtown at a church. Here's a website.
Http://www.wilmingtoncontradance.info Good luck!