GOOGLE BLOG SEARCH!
If you haven't discovered it yet, has beta-released an engine to search all blogs, including LiveJournal and similar facilities.
So... put in any search term, such as your username, and see what it comes up with ... or any other words (such as "brian epstein") (hee hee) and you may come up with a few surprises! Put in your boyfriend's name and see if anyone's been making private posts about messing around with him!
Here's an easy Help/FAQ for the blog search.
And BTW, you can also get to it through Blogger:
Here's an article/review on it by SearchEngineWatch.com, which is an amazing site in and of itself.