I've had the conversation with peers about personal relationships between members several times over the years. I know a number of happily, and some less than happily, married military couples. Let's face it, it is going to happen. It should never involve members within the same chain of command, and if a relationship develops, someone needs to be moved and moved quickly. There are also certain circumstances where it should never be tolerated, i.e. instructors and recruits.
To see so senior an officer, make so basic an error in judgment is rather disappointing, but I guess we are all too human.