In every heart there is a room

A sanctuary safe and strong

to heal the wounds of lovers past

Until a new one comes along.

It was so painful. Watching everyone he loved walk out of his life. He knew he deserved it. He knew he caused it. It still hurt. But now, he had Cas. Cas, who looked at him as if he was the only human in existence. Cas, who could do nothing to harm him or Sam. Cas, who, against his better judgment, Dean was falling hopelessly in love with.

I spoke to you in cautious breath

You answered me with no pretense

And still I feel I've said too much

My silence is my self-defense.

Dean isn't the kind of guy who share his feelings, no matter what lovey dovey crap Sam makes him watch. He doesn't share anything because that's how he was raised. John Winchester never tolerated Dean crying and acting like a baby. He had to be strong and take care of Sam. He'd never known any other way. As a result, he kept all his pain behind a great mask of alcohol, sex, and hunting. So when he blurted out "I don't want you to go" and grabbed Cas' hand as the trench coat-wearing angel turned to leave, he was just as surprised as any. And he'll deny any wetness that might have been blooming in his eyes.

And every time I've held a rose

It seems I only felt the thorns

And so it goes, and so it goes

And so will you soon I suppose.

As they sat on the couch together, Dean's head pillowed by Cas's chest, the angel's arm wrapped tightly around the hunter's body, Dean couldn't help but feel as though it would all end. Because if experience had taught him anything, there were only two constants in life: Dean Winchester isn't important, and everyone he loves dies or goes away, never to return.

Including Cas.

But if my silence made you leave

Then that was my worst mistake

So I shall share this room with you

And you can have this heart to break.

God, he wished he could stay there forever. Never leaving, Never moving. Frozen in time with his Angel. He couldn't help the tears from forming.

"Dean? What's wrong?"

"I-,I-"

"Dean are you in pain?"

"No Cas. I'm fine just, I wish we could stay like this forever. I don't want you to leave like everyone else."

Castiel drew his righteous man in closer.

"Dean Winchester, I will never leave you."

And this is why my eyes are closed

It's just as well for all I've seen

And so it goes, and so it goes

And you're the only one who knows.

"Why do you think I'll leave you Dean?"

"Everyone has. Mom, Ellen, Jo, Bobby, my dad. Hell even Sam's left me."

"He's come back."

"Only out of necessity. If he had a choice, he'd of left and stayed away for good a long time ago."

"That's why you don't share your feelings with anyone, not even Sam?"

"Yeah, 'cause those people you share them with, they just break your heart."

So if I choose to be with you

That's if the choice is mine to make

But you can make decisions too

And you can have this heart to break.

Tears were flowing freely down Dean's face. He couldn't bear the thought of losing his brother or Cas. Castiel sat up slightly, cupping Dean's jaw.

"Why are you sharing your feelings with me then?"

Dean seemed to shrink under Castiel's gaze as if embarrassed.

"I trust you. You won't know how to exploit me, even if you wanted too. Because...because I love you Castiel."

Cas looked at him with a wet glint in the angel's eye.

"I love you too, Dean Winchester."

And so it goes, and so it goes

And you're the only one who knows.

"I will always love you, for all of eternity."