I don't think it's Swine lyrics. The lyrics we already heard from Swine are as much about how Gaga felt she was swine as it was about this guy she was calling swine. This self-deprecation doesn't really fit with these new lyrics, which are a lot more empowered and free.
Based on the other song titles, it's not easy to guess which song they would be a part of. I wonder if they're about Taylor? Or maybe they're not about a lover at all.
EDIT: Oh wait, yeah, it definitely has to be G.U.Y lyrics.