Not everyone wants to be stopped from jumping, Dean.

[He says it quietly, almost hollowly, because while he hates that Sam might feel that way he understands it because he's felt it himself. And, ultimately, it should be Sam's choice, especially when the alternative is this.

But berating Dean won't change anything about anyone's situation. He notices the half apology but ignores it, not really ready to accept it even if it were given directly, and keeps his focus on the issue of Sam.]

Then deal with it. Sam is incredibly upset, and with good reason.