1)
Why does it say "Al Ken Yatzasi"?
1.
Malbim: First she says that since she saw him going, she went to greet him.
2)
What is the meaning of "va'Emtza'eka"?
1.
Rashi: [I went out] in order to find you.
2.
Malbim: She increases audacity to say that when she went out to greet him and request [that he eat with her, but really,] when she went out, she did not know that he will come towards her.