@aa2014 you did not physically live in NC nor did you earn any money sourced from NC, so I don't see that filing an NC tax return is necessary
for example, if you had an income producing property in NC, then you would have NC sourced income.
Just using an address in NC doesn't somehow cause your income to become 'sourced' in NC.
https://www.ncdor.gov/taxes-forms/individual-income-tax/nonresidents-and-part-year-residents
