I didn't include my reply to Candy in the original post, but it was along the lines of 'I really don't expect to be asked for pictures, so that won't be a problem. I also don't post other people's weddings on facebook, that's your job!' I never had any intentions of bringing photos to work or posting them on the internet, that's not my place and I know it.
Yes, it is a gossipy office. It's the whole organisation, and there's nothing really to be done about it. I unfortunately opened my boss up to the question in a way - he asked me what I thought of the groom. I told him I'd known him personally before I worked with him (true, I hadn't met him before they started dating, we were in different buildings), so I couldn't really answer that. He then cornered me - it's because he's dating Candy, isn't it? He knows Candy and I were in school together. He was also apparently at the same event they got together at, so he'd known all along. It's a disaster trying to keep anything in our place secret.
As for the comments to Candy and the groom, they have been made directly to the groom. Candy says he's different outside of work, and she wishes he'd put more effort into his job.