What feelings are associated with stuttering?

What feelings are associated with stuttering? I've just dated a guy who stutters. It is not a turnoff for me, but I'd really like to understand what he feels when he's stuttering. It was a first date so I wouldn't wanted to ask but I'd like to know. Otherwise he seemed confident, but my initial feeling was that he was anxious when stuttering and I wanted to hug and comfort him so bad, but I guess I was just projecting, so I'd like to know what feelings are generally associated with stuttering.