Ville Valo Forum

Could someone maybe tell me what exactly the "May" tattoo stands for?! For some reason i never could figure that out. I have just now read (here) that it has to do with that Jonna chick?! I dont really give a shit about Ville Valos private life, its none of my business. But i love his tattoos, so i would really like to know what exactly it means and stands for.
thanks for answers :)