Friend got cold sore 3-4weeks ago. shared a fork the other day on accident. her cold sore seems to be healed. likely hood of getting it?

Very unlikely, but..: There is always a risk of catching or giving germs, viral or otherwise, when touching or being very near another person. That's the way life is. However, we humans much touch other humans. That's also the way life is. That said, cold sores are usually oral Herpes type 1, which is a virus that most people catch at some time. Many people catch it from their parents or siblings in childhood.