Jonathon was mostly correct. In NC, both husband and wife "own" the property, even if only one is on the loan. However, a split does not automatically occur in the case of a divorce. I am not an attorney, and don't want to represent myself as one, but divorce and property ownership are separate issues.
Really, the key is, when you're married it takes one spouse to buy the property, but it takes both to sell, regardless of who is on the loan.
I hope that helps!