His attempt at a laugh came out weak and pitiful, doing a poor job of masking the growing fear that Sam would do something impulsive. His throat was painfully tight and he knew he'd probably lose control completely if he tried to say more than a few words at a time. "You're my best friend."
Cole blinked furiously, folding his arms over his chest and trying to keep his voice from wavering. "Good."
He hoped more than anything that Sam would keep his word.