My bestmate wants 24/7?

We got drunk and felt y at a party last year and got a bit carried away. At the moment I had just come out of a bad relationship so i was vunerable, she knew that and took advantage. After the fact I felt so ashamed and weird. what do i do, because now she's pestering me 24/7 telling me she love my p*ssy and it was the best she ever tasted, what do I do. I have been physically hiding out in my flat from her. walking my son to school a different route. she has become a stalker drunk or sober! Help