Alone.
adjective.
Having no one else present.
"He was alone."
Synonyms: by oneself, on one's own, all alone, solo, lone, solitary, single, singly, unattended, unchaperoned, partnerless, companionless.
Lonely
adjective.
Sad because one has no friends or company.
"Lonely people who have no one to care for them."
Synonyms: isolated, alone, all alone, friendless, companionless, with no one to turn to, outcast, forsaken, abandoned, rejected, unloved, unwanted.
Jack Frost was alone.
He had no one to talk to. No one knew his name. No one could see him, and those rare few who could ignored him. He had been alone for 300 years.
Jack Frost was lonely.
No one cared for him. His only companion was the wind, but she couldn't touch him, and he could barely understand her. The wind was primordormal, and didn't understand. He was abandoned by the moon, and unwanted by everyone else.
Jack Frost had tried.
He had tried everything. He tried games, frost drawings, messages, blizzards. He tried to be good. He tried yelling at them. He tried to gain the other's attention. He tried writing himself into books. He tried so hard, but still no one saw him.
Jack Frost pleaded.
He begged. He screamed. He asked for just a little. Just a little of something. He asked, and begged, and yelled, and screamed, and whispered with broken voice. Each night he spoke to the moon, and each night the moon stayed silent.
Jack Frost hated silence.
He hated how it crushed him, consumed him. He hated how it stole his words away. He hated the emptiness in it. But most of all, he hated the echo it left.
Jack Frost stayed strong.
For 300 years, he didn't break. He didn't kill. His heart didn't freeze, and he kept spreading fun. He didn't break, no matter what some might have told you.
One day, Jack Frost shattered.
And he took the world with him.