Even after learning of his brother's deceit Esau cries out to his father for blessings as well never mentioning any reprisals.
We are only told that he planned murder in his heart and there is no record of him telling anyone.
So Esau bore a grudge against Jacob because of the blessing with which his father had blessed him; and Esau said to himself, "The days of mourning for my father are near; then I will kill my brother Jacob."
But later we are told Rebekah knew of Esau's plan
Now when the words of her elder son Esau were reported to Rebekah, she sent and called her younger son Jacob, and said to him, "Behold your brother Esau is consoling himself concerning you by planning to kill you.
How did Rebekah know about Esau's plan?