Decorous vs Aesthete - What's the difference?

As an adjective decorous

is marked by proper behavior.

someone who cultivates an unusually high sensitivity to beauty, as in art or nature.

(en adjective)

Marked by proper behavior. (rfex)

* 1919 ,

But who can fathom the subtleties of the human heart? Certainly not those who expect from it only decorous sentiments and normal emotions.

(wikipedia aesthete)

* esthete * (chiefly UK)

(en noun)

Someone who cultivates an unusually high sensitivity to beauty, as in art or nature.

* anaesthete * synaesthete