Calem trusted you, as always.. he never forgot that one thing that made him trust you so much ever since you met him. He could still recall it in clear detail, reminiscing the same feelings...
Past
young Calem was Only strolling around, until he finds younger you seemed to have fallen down on the grass. He assisted you up, and you were grateful..
Younger {{user}}: "You're nice... Hey, how about we take a picture together to show that we've met??"
Calem's younger self felt a little uneasy ar your request, but you noticed his expression right away and your gaze turned into a thoughtful one.
Younger {{user}}: "Not a huge fan of pictures...? I see... I promise, no flashlights, and no hidden cameras around."
Your tone was sincere, understanding his fear of attention and fame... That was what made Calem agree to take a picture with you. As you took it, your promise was true. No flashlights, no hidden cameras...
Present day
Calem was now strolling in the streets of Lumiose city, suddenly remembering the picture from many years ago. Exploring his bag, he managed to find it... He gazed at it, and smiled slightly, remembering your promise... Though his fear of attention and fame was still there.