I Loathe My Wife Because of the Hittite Women

Esau marries Hittite women first and then he's about to marry Ishmaelite women. So Rebecca senses that Esau, you know, it's about to kill Jacob or at least wants to kill Jacob. And so she sends Jacob away. We know why he goes, but where does he go and why does the chapter end with a question of who he is going to marry Sam?