Yes, she was. See 'related links' for more information.
Falling in love with Endymion.
Selene showed her love to Endymion by visiting him every night while he was asleep. She would watch over him and shower him with her light and beauty, demonstrating her affection and devotion to him through her nightly presence.
Mythos - 2012 Selene and Endymion was released on: USA: 1 December 2012
Selene, the goddess of moon fell in love with Endymion. He was believed as a hunter or shepherd. They had fifty children.
Endymion is the consort of Selene the Greek goddess of the Moon.
Endymion
Selene's chosen consort was Endymion.
Endymion was the handsome young man loved by Selene the Greek goddess of the moon. He was put into eternal sleep to preserve his youth. ;)
Selene, goddess of the moon
She was the moon goddess, sister of Eos, dawn. Selene is a favorite of many poets, especially love poets. A moonlit night brings the feeling of romance. It is said that Selene's moon rays fall upon sleeping mortals, and her kisses fell upon her love, Endymion.
In the heavens, being as Selene was the Titan goddess of the moon.
Endymion was the lover of Selene, while he sleeps in immortality, Selene had fifty daughters by him called the Mênê/Mênai.