I think it's pompous of you to call your boyfriend the prince of darkness...I mean he's not even relatively close to being as bad ass as Ozzy was, in his prime. He's on the complete opposite spectrum of "dark" to be technical.
Like Ozzy was the only self-proclaimed “Prince Of Darkness,” others such as Dave Mustaine and Alice Cooper wrote songs titled that as well. I think you’re pompous. Get a grip, dude.