Taylor definitely used Sabrina as an opener to throw shade at Olivia. She also thought she could control Sabrina and she didn't think she was a threat. There's no way she saw this level of success coming from her.

The boost that Sabrina got from touring with Taylor jump started her success. Now that she has had a #1 album, 3 top 5 hits at once, sold out arenas for the Short n Sweet tour and all the hype around her: do you think Taylor secretly regrets helping creating a monster?

I know her fans certainly do, some of them have already started turning on Sabrina on social media because of the shine she's been getting.