1)
What is "Asher Tomeru Eilai Eten" referring to?
1.
Oznayim la'Torah: It refers to the Kenas (penalty) that he was offering to pay for having raped Dinah.
2.
Malbim: I will pay for shame and blemish for what I did, what you say is proper, so I will have grace in your eyes (to atone for my sin).
