Million Reasons should be the 2nd second single, although somethng's telling me Gaga is reluctant to that happening (e.g. MR performance removed from the Vevo channel). I hope she accepts.
Wait is Diamond Heart about her being raped when she was young?
Not specifically. The song seems more about her life in general as a whole right before she got famous. That includes gogo dancing, getting raped, leaving school trying to get a record deal, the underground scene, etc.
Oh, I could use some two or three or other kind of ways to be
But today I won't be so hard on me
I'll walk alone down a different street
And smile at all the new strange I meet