India, Feb. 7 -- Taylor Swift "can't help but feel used" by her longtime friend Blake Lively, a source exclusively told Page Six. The pop superstar is reportedly upset about being referenced in Lively's alleged texts, which surfaced as part of a countersuit filed by Justin Baldoni, Lively's co-star and director in It Ends With Us.

In the legal documents, Lively's alleged texts to Baldoni mention, "If you ever get around to watching Game of Thrones, you'll appreciate that I'm Khaleesi, and like her, I happen to have a few dragons." While she did not explicitly name anyone, many believe she was referring to her husband, Ryan Reynolds, and Swift.

Baldoni, 41, seemingly confirmed this interpretation when he responded, "I really love what yo...