The OW tried this for months. She emailed, called, randomly showed up at places where she knew we would be, left notes and gifts outside my H office door and with the receptionist. It was pathetic. My H's IC was very emphatic that we stay NC and never give her any attention. He likened it to feeding a vampire and we had to starve it. It was very hard, but my H brought me every little gift and note she left. The email account she was using came directly to me and my H forwarded every text she sent. She kept it up for months. The last time she showed her face in person she actually walked into our church one Sunday morning.
Keep NC, but keep evidence of any contact she makes, just in case you need it.
Married 30+ years
2 young adult children
OW single 20 years younger
Together trying to R
Freedom's just another word for nothin' left to lose