Narcissus

In Greek Mythology Narcissus was a hunter from Beoetia who loved all things beautiful and was himself beautiful.
He was the son of a River God Cephissus and a Nymph Liriope, or possibly of Selene and Endymion.

Ovid in Metamorphoses, Book 3, recounts the tale of Echo and Narcissus:

Echo was a mountain Nymph who, when she saw Narcissus after a day’s hunting, fell in love with him. She followed him until Narcissus turned and asked ‘who’s there’ and the Nymph Echo replied ‘who’s there?’
Eventually, she revealed herself to him, but he spurned her advances.
Echo retired to lonely places with a broken heart, and faded away sighing, until only the sound of an echo could be heard.
Nemesis, Goddess of Revenge, after seeing what happened, set out to teach Narcissus a lesson. As he looked at himself in a pool, he was made to fall in love with his own reflection.
After a long while he realised he could not love himself and turned into a flower. Other versions end in his suicide.