Weiss was never very fond of hugs.
She couldn't remember very many as she was growing up. There were only a few from her mother or sister, and they were always stiff and cold and awkward. Weiss didn't see the appeal of being so close to someone.
But when Ruby hugged her, she didn't feel any of that. Ruby held her tight, yet she was also gentle. It was warm and comfortable and Weiss found herself quickly sinking into Ruby's arms. When Weiss found the courage to hug Ruby back, she finally understood what she was missing.
Hugs were amazing.