Demon Dismantled

I have been trying to change my display name to ღ ღ for the last two weeks, it gets accepted and suddenly 30 minutes later disappears and only a little heart is left on it, and there's nothing against the name, I'm currently wondering if this is just a glitch in the game or it is just against the rules to name yourself after the goddess of death? like somebody please help.. I've never had this problem before, why am I being penelyzed now? femaledemon resident