Context: They both thought I did n't know or suspect prior to receiving this email . She emailed me a few days later ( still before the weekend motel plan ) about how she felt , why she was going to do it , that she was sorry she lied to me and hoped I would not feel badly toward her some day down the road ( paraphrasing here ) . She planned to go ahead with the weekend , because she wanted to and wanted to feel good .

Question: Why is she sorry she lied to me ?
Options:
0. Because she emailed me .
1. Because I did n't know
2. Because I did n't suspect .
3. Because it was a mistake .
Answer: 3