1)
To whom did he say "Al Yivada"?
1.
Rashi: He said so in his heart, it is not honorable for me that it be known that a woman came to the granary [with me]. This explains "va'Takam b'Terem Yakir."
2.
Malbim: He told his youth 1 not to reveal to anyone that the woman who was with his girls at night in the field came to the granary and was there at night.
3.
Torah Temimah citing Rus Rabah 7:1 #2: The entire night, he prayed to Hashem - You know that I did not touch her. May it be Your will that no one know that she came, and Your name not be profaned through me!
1
Torah Temimah citing Rus Rabah 7:1 #1: A boy of his household.
