If you walk out that door…..don't ever come back.

'Sammy…I'm sorry'

'….Dean. Why I am here? I have a job to do…'

'A job being a demon? Great one…'

'No Dean! Christ…how many times do I have to explain myself to you?'

'You keep explaining it to me until you stop what you are doing…I can help you. I can. I just need you to not be what you are at the moment…'

'What does that mean?'

'Sammy…look at you. You are turning into something we hunt…and I'm scared Sammy.'

'Well don't be scared for me Dean…I'm fine'

'No…I mean I'm scared…of you'

'…'

'Sam, I am sorry it has got to the point where I have literally had to drag you from what you are doing to talk to me…but you remember when you told me that you wanted me to be my brother again, a few weeks before I died?'

'Yes…'

'I want you to be My brother again Sammy'

'Dean…I am your brother…always. And after we defeat Lilith, we can do the brotherly stuff that we used to do…just let me do this…'

'Sam, I mean it when I say don't come back…if you carry on doing this I cant be around you…'

'Why not?'

'Why not?! Jesus Sammy, you're drinking demon blood and sending demons to hell with not just your hand, but with your frickin mind!! That's demon behaviour Sam…and if I'm around you, I'll be afraid that I will kill you…'

'Well do what you have to Dean…I know what I need to do…'

'God dam it Sammy, just STOP!'

'It's gone too far Dean….soon MY power will defeat Lilith…yeah defeat Lilith Dean…do you not care about that at all? Jesus Christ, as soon as Lilith is dead, stick me in that panic room, cut me and drain the blood from me, god dam kill me! I don't care anymore! I just need to do this!'

'Sammy, I can help you kill her with Cas and the knife….we don't need your power…'

'Alastair nearly killed you two….who sent his demon ass back into Hell? Oh yeah, me…'

'I'm grateful to an extent Sam, but don't you see that you are destroying yourself...You are not my Sammy anymore…'

'And you aren't my bad brother Dean who I looked up to since I was 4…'

'Sam…'

'You know what Dean…its fine. We will go our separate ways and you do what you have to do.'

'Sammy…don't'

'Hope you and Castiel have a nice feathery adventure together…Bye Dean and no…I won't be coming back…'

If you walk out that door…..don't ever come back.