I also have two accounts. all of Stacye's fb friends know both sides of me and I don't accept a friend request from anyone who doesn't. It's a great way to communicate with everyone who knows about Stacye, and it gives me the freedom to talk about things that I wouldn't want "his" friends to know.
CAUTION: Check your privacy settings on both accounts frequently, fb doesn't always keep your privacy in mind when they make changes
One of the ways i protect myself is that he is not on my friends list and I am not on his. It's far from any kind of security, but it does create a buffer.
