"Blank Space" starts with the moment the fictional serial dater lays eyes on her new conquest and immediately begins to entrap him. The line "Magic, madness, heaven, sin" describes how Taylor Swift can make the relationship feel enticing when in reality, her partner should be running away from her. He might eventually fall in love, but for her, love is nothing but a game to pass the time.

She knows her beau is already wary when she approaches him because he has heard that she toys with men and discards them. But that doesn't stop the serial dater because she simply offers a friendship and eventually turns into something sinister. The iconic line, "Got a long list of ex-lovers / they'll tell you I'm insane" is a jab at Swift's exes, who shamed her for writing about them. After that, Swift admits that she already knows her beau will join her exes list.

At the start of the second verse, Swift shows how she creates the illusion of a perfect relationship by jet-setting her boyfriends to beautiful places with gorgeous skylines and lies to them with her pretty mouth. But eventually, the facade shatters and her crazed self emerges. "Screaming, crying, perfect storms, I can make all the tables turn" portrays just how quickly Swift turns on her partners. In the bridge, she repeats, "Boys only want love if it's torture," to echo how some young men don't actually want to get into a relationship and only pursue someone because they want to feel powerful.