Scotty wanted to kick himself for saying anything. He wasn't the type to need anyone but he didn't want to be alone. Since being at solitary all that time he hated it. He didn't have words to describe about his time spent in there. Which was why he was so worried about Sandy being in there. He couldn't do a thing about it without possibly causing more problems for her.
There was a moment of awkward since after Cas said he wouldn't leave. He was relieved that he didn't. Cas was wet and probably cold because he came to help. "Shirt's dry on the sink over there," It was his but it would probably still fit. Although he was a bit of a skinny guy he tended to wear larger sized clothes.
"It's my fault," he whispered. "I did this." He was talking about Sandy being in solitary.