Why did Yakov call Rachel before Leah (despite the fact that he married Leah first and she bore him the most sons)?
Rashi: Yakov's attachment to Lavan began with Rachel, and so, from the word go, he considered her his main wife. 1
Why did Yakov 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 (See Pasuk 31).
Why did Yakov call his wives to come "to the field, to his flock"?
Ha'Emek Davar (4,22): It was to Yakov's flock, but not Lavan's, lest Lavan's shepherds notice. Lavan had other shepherds tending his animals together with Yakov.