These are the lyrics Yixing wrote when he realised he was in love with Junmyeon. 

Or as I like to call it, Yixing being a fluffy romantic little :

And I'm just passing hours
Sitting here fallin in love
Watching you sleep
Wondering what you dream
And if you know I'm here
Darling are you cold
Do you need a jacket
Do you need a blanket
Let me keep you warm
Gentle eyes and lonely smiles
They're all I see
And from where I am standing now
You are all that I need