For the whole day Ruby and Sam stayed together. Well it more of Ruby staying by his side for protection and to help both him and Dean with their case to. The two walked side by side just so Ruby doesn't be alone and see images of Nick anywhere near where the trio were.
Dean went a different direction then Sam and Ruby went. But it was either stay with Sam for safety or Dean who doesn't like Ruby and would shoot her until she was dead. She chose the right brother as protection cause if she chosen Dean she would've just piss him off with something.
She looked around everywhere hoping that he didn't follow them to the house or anything. Her fear would then return. The only reason she wasn't fear before Nick came back was mostly cause of him. Telling her that she worthless bitch and no one would ever love her and she was pathetic and weak and all of it was true. When she with the Winchester or Sam mostly they make her feel a little bit stronger and more independent at times too. They don't put fear into her cause of the tust they share..sorta.
Ruby didn't want to be lost or out of Sam sight, she quickly put her hand into his as they walked. Sam notices this. "Ruby…why are you holding my hand?" confused he had to ask her that now. She looked at him. "Don't wanna you get lost or anything" part of it was a lie and half was the truth. It wasn't Sam that she didn't want to be lost it was her that she didn't want to be lost and be left alone and scared.
It was time that Ruby started to face her own fears now even if she can't handle it alone but can't do that unless if someone puts faith into her to face Nick by herself. But who can do that is now the question?