On Sunday night, the reality star re-ignited her and husband Kanye West‘s long-standing feud with Taylor Swift by leaking a series of videos via Snapchat featuring a phone call between the rapper and the singer discussing West’s lyrics in “Famous.”
“Kim is super loyal to Kanye and will always do anything to have his back,” a source tells PEOPLE. “She is even more protective of him than she is of herself. She thinks he’s misunderstood and couldn’t stand that people thought he was a liar.”
The line (“I feel like me and Taylor might still have sex. Why? Because I made that bitch famous”) became an intense he-said/she-said conflict after West’s album was released in February. At the time, Swift’s rep told PEOPLE the singer “declined and cautioned him about releasing a song with such a strong misogynistic message. Taylor was never made aware of the actual lyrics, ‘I made that bitch famous.’ ”
After months of speculation over whether Swift knew about the lyrics prior to the release, the Keeping up with the Kardashians star tried to end it once and for all. Cameras recorded all of the 39-year-old’s behind-the-scenes music process, including the Swift phone call.
“The whole family will rally and go after anyone who comes at one of their own … it’s just how they always have been,” adds the source. “Even with Lamar [Odom] and Scott [Disick] and all their drama, they still defend them publicly.”
WATCH: Taylor Swift-Kim Kardashian Feud: Internet Sides with Kim on #KimExposedTaylorParty
“She was tired of Taylor being portrayed as this angel,” another source close to Kim and Kanye adds. “She’s fake. She said one thing when the song came out and now she’s saying another. She painted Kanye as this monster. He was actually trying to do the right thing for once when he called her.”
Almost immediately after Kim, 35, released the footage on Snapchat, the hashtag #KimExposedTaylorParty began trending on Twitter, prompting the 26-year-old “Bad Blood” singer to release a statement in a lengthy Instagram post to add more perspective.
“Where is the video of Kanye telling me he was going to call me ‘that bitch’ in his song? It doesn’t exist because it never happened. You don’t get to control someone’s emotional response to being called ‘that bitch’ in front of the entire world,” the singer wrote on her social media account. “He promised to play the song for me, but he never did. While I wanted to be supportive of Kanye on the phone call, you cannot ‘approve’ a song you haven’t heard. Being falsely painted as a liar when I was never given the full story or played any part of the song is character assassination.”
Keeping Up with the Kardashians airs Sundays (9 p.m. ET) on E!
•Reporting by ELIZABETH LEONARD