Genesis 28 (The Forgiven and The Sook)

Genesis 28
How good is forgiveness?
How much weight can be lifted when someone says "I forgive"
Jacob deceived (wore goat skin arm hair)
Jacob lied ("I'm Esau")
And then Isaac blesses him further.
Ok I take a bit of a jump here, assuming forgiveness. However if he didn't forgive, how does he come around to give a blessing so close to death?
Whether it was from realisation of the forgiveness or it was his character (chew on that for a bit!!), Jacob honoured Isaac's directions and God met with him
and
blessed
him.

Esau must have thought he was in the right at some point.
He was the eldest (slightly).
He had his father's favour.
He was a leader. (Actually I don't think he was, ignore that bit)
He expected a birthright.
He traded it.
He expected a blessing.
He was robbed of it.
He hated Jacob and that hatred grew.
But when he saw Jacob now had the birthright, the first blessing, the second blessing and now Isaac's favour, he spat the dummy big time.
"I'll go and do what my father doesn't want me to do. I'll show him."
Big sook.
Did it help.
No.
Did he learn.
I doubt it.
Silly Esau.