btw. My friend and I went out there. We tried to walk to the lighthouse, and decided it was too far and decided to drive because of how far away it was. Here is my best theory so far:
1) Asha wanted to turkey dump Jamai. But she was also really upset and wanted to be alone that day, so she walked out along that back path out there to clear her mind. When she realized how long the path was, instead of going back, she kept walking and was maybe even crying as she walked. She was so upset, she didn't even care that her feet hurt. She was just out there in nature for a few hours trying to clear her mind and clarify what she wanted out of life.
2)Jamai and (the other person of interest) quickly found the path in the back of the Rollerville, but she was wayyy ahead of them at that point. They walked for maybe an hour and a half, then the friend got tired/hungry, and went back to the cafe to get a coffee while Jamai took the car out to where the trail ends(the lighthouse).
3)Asha was sitting out there on the cliffs looking at the ocean. After a really horrible last few days she had decided she didn't want to be with her boyfriend anymore. At that point, she got in a car with a stranger......and that stranger was Jamai. She dropped her jacket (or accidentally forgot it) on the bluff.
4)Then she really disappeared.