I’m sorry but I just had a very creepy experience! Last Sund.. (OnlyFans)

I’m sorry but I just had a very creepy experience! Last Sunday there was a stranger outside at my house. He only spoke France. I didn’t know what he wanted from me. I was still in my pyjamas. I din’t see a car or anything. He was alone and tried to tell me something, but I didn’t understand anything of what he said. I was a bit shocked and went back inside. 
This morning he was here at my work. Walking in the shop for about 30 min and looking and acting weird. I was at the back but we could see him on camera. I didnt know it was him. I didnt reconize him at first. My collegue came in the store to help him and he asked her for the girl with red hair. He told he want to apoligize for last Sunday. At that moment I realized it was the same guy that was at my door when I was home alone. 
I had to go in the store to talk with him. But of course I didn’t understand anything of what he said again. My colleague speak French but I’m not. 
He said something about “ les livres de recettes”. That I sell something on the internet. But I dont sell books. it don’t make sense! How does he know me. How goes he know where I live and work? This is so creepy! 😳