Something had been different about Ladybug ever since that day. She looked at him differently, and Chat knew that whatever had caused her to call him to that rooftop so out of the blue had impacted her far more heavily than she was letting on.
When he'd arrived to see her already there backlit by the sunset sky, he hadn't expected her to fly into his arms. Hadn't expected her to be crying, and apologizing. He'd held his Lady as she sobbed against his chest, wondering what had happened to her that he couldn't protect her from. He had tried to ask, but she'd been stubborn, side-stepping his queries even as tears leaked from crystalline blue eyes to soak into the front of his super suit.
Under any other circumstances, Chat would be over the moon. His Lady, his Ladybug, was willingly in his arms, willingly resting her head on his chest, just to feel the reassurance of his heartbeat beneath her ear. But he understood the desperation in her eyes and felt it still in the way her hand hadn't uncurled from his shoulder. This wasn't a declaration of her love for him, not in the way he had dreamt of or supposed. No, this was a need, and it was a need that Chat recognized all too well.
So he let her cry, stroking her hair and crooning to her that it was alright. That they were both safe, and that whatever had happened, whatever would happen, he'd be there beside her, as he always was. He held her until the rich oranges and pinks faded to inky blues and muted purples, and the first stars of the evening began to dot the Paris skyline. He held her until her trembling stopped and then held her because she didn't move from his arms.
Eventually, Ladybug had pulled herself away from him, and the cold air that rushed between them chilled his touch-warmed skin. She murmured her apologies, but he'd gently smoothed them away. She'd needed this, needed him, and he was more than happy to provide. He waited until she'd disappeared from his view before sitting and detransforming, looking over the Paris skyline while Plagg noisily ate his weight in cheese beside him.
"Do you know what that was about?" He asked the kwami, keeping his gaze on the distant specks of glittering light. He saw Plagg look up at him, green eyes glowing in the darkness.
"I thought it was obvious, kid." He replied in his usual drawl, though he made no effort to return to his meal. Despite his attempts at seeming unaffected, it was clear that Ladybug's actions had rattled the Chaos deity too.
Adrien didn't know what to do about this. He sighed, running his fingers through his hair and leaning back against the wide edge he sat on. Almost without his permission, a soft song spring to his lips, and before he really knew what he was doing, he was singing under his breath.
"Little kitty on a roof, all alone without his lady…"