Yes, that's right. When I first read the story, I thought it said that the affair actually happened in Maryland. After reading it again, I don't think it did, but I'm not entirely positive.
Initially, I thought that there's no way a MD Court is going to enforce a NC judgment based on a NC tort law for something that happened in Maryland. Right?
Would they enforce a judgment for a NC tort judgment based on actions on NC? Sure.
Of course, this underscores how archaic these alienation of affection claims really are. How a state can hold responsible a third party for the dissolution of a two-party contract, is truly mystifying.