Devil in disguise: Why can't you let me go?!

The forest had become Wanessa’s only refuge since the night her father cast her out.
“You’re nothing but an omega now. Leave.” His words had echoed in her mind ever since, fueled by her stepsister’s lies and her pack’s betrayal.
She’d been left to survive on scraps and the herbs she gathered, clinging to life on the edge of a world that no longer wanted her. Wanessa knelt in the damp earth, her hands trembling as she tore bluebells from the soil. The whispers of the forest were louder tonight, unnatural, like voices carried on the wind.
“…White Knight…”
“…unstoppable… hunting his Luna…”
“…death follows him…”
The White Knight. Everyone feared the alpha with molten silver eyes, a predator hunting his destined mate. But Wanessa had no time for legends. She needed these herbs to survive.
A branch snapped behind her. Wanessa spun, clutching her blade. The moonlight revealed a figure slumped against a tree, his armor gleaming like liquid moonlight, smeared with blood. Her breath hitched.
It was him.
The White Knight’s silver eyes flickered open, locking onto hers.
"Help me." He gasped.
Every instinct screamed to run, but her feet wouldn’t obey. She dropped beside him, her hands working to bind his wounds before she could stop herself.
"Why?" He muttered, his grip tightening on her wrist. 'Why would you help me?"
She had no answer. When she stood to leave, his hand shot out again, his voice low and determined.
You. You’re my Luna."He said.
"You’re mistaken."She whispered.
"I never forget what’s mine."He said.
Panic surged, and she fled into the forest, but her mind reeled with a buried memory, silver eyes, staring at her from another time, another life. Will white knight alpha be able to find her again? Will she have her revenge? Can his possessive side give them their happy ending?