The fireworks start to explode. Dean and Sam back away. Both of them laugh with joy before Sam goes out to dance under the sparks. Sam nods to Dean acknowledging the special moment. Dean nods back. - Dark Side of the Moon transcript
Jensen Ackles - PCA Red Carpet Interview 2013

I thought you said that we were like family. Well, I think that too. Shouldn’t trust run both ways? Dean… I do everything that you ask. I always come when you call. And I am your friend. Still, despite your lack of faith in me and now your threats, I just saved you yet again. Has anyone but your closest kind ever done more for you?
We’d said we’d keep in touch. But touch is not something you can keep; as soon as it’s gone, it’s gone. We should have said we’d keep in words, because they are all we can string between us.— David Levithan
Dean, Interrupted.