Selenophile
(n.) A person who loves the moon

Nyctophile
(n.)A person who loves night or darkness.

Philophobia
The fear of falling in love or emotional attachment. The risk is usually when a person has confronted any emotional turmoil relating to love but also can be chronic phobia. This affects the quality of life and pushes a person away from commitment.

Everyone is a moon, and has a dark side which they never show anyone.
You become the monster you fear most, so the monster won't overtake you.