I don't wanna snoop around in Taylor's personal life too much, but Hoax makes me feel so uneasy?? It's a beautiful song and she references so many of her other songs in it:
"Don't want no other shade of blue but you" reminds me of all the lines about 'blue' on the Lover album
"My only one, My kingdom come undone, My broken drum, You have beaten my heart" - King of my Heart
"You knew the password so I let you in the door" - gives me Call It What You Want vibes
"You knew it still hurts underneath my scars from when they pulled me apart, But what you did was just as dark"
Assuming she's talking about everything that happened in 2016/17, what could have possibly been as dark? It screams abusive relationship/being cheated on/betrayed by your partner to me. I really hope she just let her imagination run wild with this one...
Probably quite a bit of a reach, but maybe it's inspired by Selena's relationship with Justin, with him constantly cheating, getting married after only a few months of their break up and her surgery?