As soon as he got that cush moderator position, he has been shagging all the elite ladies. This has taken it's toll on poor Mustang, and at the moment he is recuperating with only 4 elite bunnies and is taking clomid at a clip of 300mg/day for...what was it again, Mustang?...oh, therapeutic purposes.
But he'll be back as soon as his huge moderator signing bonus is spent.