I know how difficult it can be when the image you've had of something doesn't match its reality;
Then:
Long white hair that barely graced lean, broad shoulders. A strong, handsome face with high cheek bones that housed hypnotizing blue eyes. A tall, lean figure dressed in black, blue and yellow. That confident, border edge cocky, smirk. A friend from the past. No. Not a friend from the past but someone she once knew very well but now….
"Riku." The name fell from her lips tenderly; the white haired male seeming to have heard it. He turned his intense blue gaze upon her, countering her dubious stare with a suave smile.
The smile was the same; it made her face heat up like it used to back on the islands. The gaze was the same; it made her heartbeat quicken. However something was slightly off about him. The way he stood, tenser than before, and the way he spoke, a little deeper and darker than usual. This wasn't the same boy she grew up with on the islands.
Riku stepped forward to take the girl into his arms but was surprised when she abruptly stepped back. He frowned in confusion at her actions.
"Okay, so you're coming with us, right?" a male's voice, ripe with innocence cut through the tense moment. Riku turned his attention towards the brunette haired boy the voice belonged to after one final glance at the doe eyed girl. "We've got this awesome rocket! Wait 'til you see it!"
"No." The words fell from the girl's mouth easily, surprising not only the brunette and Riku but herself as well. When all eyes were turned on her she locked gazes with the white haired male and spoke her protest with more conviction. "He can't come."
"What!" the brunette exclaimed. "Mizuki, what are you saying! Riku's our friend!" The girl simply shook her head and turned her back on the group.
"If we want to find Kairi then we better get going," Mizuki said softly. Without so much as a second glance backwards, the girl left the small group for Merlin's house.
Now:
The same long white hair that barely graced his lean, broad shoulders. The same strong, handsome face with high cheek bones that housed his hypnotizing blue eyes. The same tall lean figure that was now dressed in clothes from the darkness, signifying his allegiance to it. That same confident, border edge cocky, smirk. No longer a friend from the past, now just an enemy, an ally of the darkness. Two long time friends, now bitter enemies.
'Riku, what's happened to you?'
when the friend beside you turns into a monster.