John Gill Commentary Genesis 27:34

"When Esau heard the words of his father, he cried with an exceeding great and bitter cry, and said unto his father, Bless me, even me also, O my father." — Genesis 27:34 (ASV)

And when Esau heard the words of his father That another person had been before him, and got the blessing; and especially when he heard this ratified, and confirmed, and made irrevocable: he cried with a great and exceeding bitter cry; as loud as he possibly could, and in as doleful and hideous a manner as can be imagined; according to the Vulgate Latin version, he roared like a lion.

and said unto his father, bless me, [even] me also, O my father; you are my father, and I am a child of yours as well as Jacob, show paternal affection to me; give me also a child's blessing, one at least equal to what you have given Jacob, if not a greater, as being the firstborn.