It didn't matter if she cared about those things. He cared about being able to give them to her. As far as he was concerned, Izzy was his future and he wanted to be able to keep her in the life she was accustomed to without having to rely on her parents.
Ben decided it was best if they continued with the silence and he simply held her. It was obvious that she was happy to have him there and he hoped that it was just as obvious that he was, at least on some level, happy to be there.