Keep in mind, I'm going from a typical male opinion. Not trying to sound chauvinistic, I can't put myself in the shoes of the triggers a woman might feel when in the same scenario. The Philly in me, that's always has me on edge makes me think, "I WISH somebody would follow me..."
If my wife told me someone was following her, and I wasn't home, then I wouldn't have her return to the house. I'd have her go to a police station, or somewhere where there are a lot of pepole at. If I was at home, I might tell her to come home, just so I can make out EVERYTHING of the pursuing vehicle, make, model, description of the driver and possible plates.