Why did Yaakov call Rachel before Leah (despite the fact that he married Leah first and she bore him the most sons)?
Rashi: Yaakov's attachment to Lavan began with Rachel, and so, from the word go, he considered her his main wife. 1
Why did Yaakov leave without informing Lavan?
Seforno: Because, when he saw how Lavan had accepted the Lashon ha'Ra of his sons, he was afraid that Lavan would steal from him. 1
He later says so explicitly to him (31:31).
Why did Yaakov call his wives to come "to the field, to his flock"?
Ha'amek Davar: It was to Yaakov's flock, but not Lavan's, lest Lavan's shepherds notice. Lavan had other shepherds tending his animals together with Yaakov. 3