1)
Why was he afraid?
1.
Rashi: He thought that a demon is there. He wanted to scream; she embraced him in her arms.
2)
What is the meaning of "va'Yilafes"?
1.
Torah Temimah citing Sanhedrin 19b: His flesh (Ever) became hard like a turnip end (a very strong erection).
2.
Torah Temimah citing Rus Rabah: Lafaseso (she surrounded him) like warts.
3.
Rashi: He was held. This is like "va'Yilfos Shimshon" (Shoftim 16:29).
3)
Why does it say "v'Hinei Ishah"?