That all is true. There is a sense in Sam's core being that doesn't think that will come to pass though. There's too much of a bond that lies between Dean and himself as well as Ruby and himself. There is a sense that something will jog his memory somewhere down the line even if he can't say it is for certain. Heaven without Ruby at the end of this possibility is just something he'd deal with when it came too. It's easier to kick those thoughts down the road. He acknowledges Dean's distress quietly and answers his question with a nod. "As far as I'm concerned, it's the only chance I have to be happy again." That's not to discount Dean; it's just to say Ruby's absence wears heavy on his heart.

He smiles barely. "Those are the terms I have to agree to anyway."