Flare's eyes widened in shock when the young mare began to cry, he'd never seen her cry, and the sound of her crying just tore his heart in two, "Willow's right." He scooted a bit closer for comfort and patted her back gently with a hoof. Whatever was bothering her, she needed all the assurance she could get.
He flicked his ears forward when she'd finally calmed enough to speak, realization dawned on him. He'd heard about that project, though he hadn't been assigned it, and didn't know if he would be, he pondered a moment over what to say before giving her a small smile, "Heey Sunny, it's alright, you know?" He thought back to what his mom had told him before, when he was younger and anxiously waiting for his own cutie mark, "Everypony's got a special talent, whether you can blatantly see it or not!"
He smiled softly and ran a hoof over her mane, "It doesn't matter if anypony else can see it, because it's still there." He pulled back a little and grinned "If you go up there with your head held high you'll show them that there isn't anything to be afraid of." He reached and rubbed a hoof to the back on his head, "Or heh...That's what my mom always told me."
He gave a knowing smile to Willow, thinking back to their earlier conversation, "Besides, being different isn't bad, right? You just have to own it, make your difference yours. And you'll teach them to do the same." He wasn't sure if his words would help at all, but he hoped it did even a little.