The English midfielder was weighing his future at St. James' Park after starting just 10 games last season.
Shelvey explained to reporters: "I'm not one to do loads and loads of interviews. You won't find me on social media - I'm not interested in all that. Let people do the talking. I've not once stated that I want to leave this club. I was close to leaving to go to West Ham but it never came - the club said no to it.
"I'm happy here, I love living in the city. My kids go to school here, they love it. The oldest one is starting to talk like a Geordie. My youngest one was born up here. I love living here."