Xukun knows what she'd been going through.
He could see through her facade.
He could see through her layers of makeup trying to cover up her imperfections.
He could realise at first glance how thinner she's got.
He knew because he'd been through it too.
He mentally cursed at himself for being a selfish bastard.
But,
Why can't I mend her broken heart?
With this thought he continued to look after her, as if she was his responsibility. Despite knowing her pain, he wanted to be the cure to it.
He knew he couldn't be the cure so easily because it never happens that way.
But he wanted to be selfish once.
For himself and for her.
