Tim Duncan’s new girlfriend, Vanessa Macias, is already a loyal San Antonio Spurs fan, and she isn’t afraid to show it. The former “Amazing Race” contestant blocked a Twitter account that she thought belonged to Miami Heat star LeBron James on Monday, citing her devotion to her boyfriend’s team.

Macias, whose Twitter account boasts more than 2,000 followers, noticed that an account titled “King James” had followed her. The account was actually a parody, but that didn’t stop Macias from voicing her displeasure for the reigning NBA Most Valuable Player.

“Umm @KingJames followed me…I had to block him. I can’t have that mess around me! #GoSpursGo #Spurs #SpursNation,” Macias tweeted. When asked about the tweet, Macias revealed her personal dislike for James. “Fans are fine, but not LeBron! I just don’t like him! I know it’s illogical, but I just don’t. And Mom would disown me!” Her response has since been deleted, but Black Sports Online captured a screenshot, which can be viewed here.

The James account was a fake, and Macias has been dealing with Twitter trolls ever since she dissed the Heat star. Still, the 33-year-old seems more than willing to represent her boyfriend’s team.

Macias was first linked to Duncan in November when Black Sports Online noticed that she sat courtside at a number of Spurs games. In December, the media personality confirmed that she was dating Duncan, but declined to comment further on the situation. “I respect Tim’s preference for privacy,” Macias told the San Antonio Express-News.

The former reality star is the first woman to be linked to Duncan in the wake of his acrimonious divorce from ex-wife Amy Duncan. The pair formally separated in August amid rumors that Amy Duncan had carried on an affair with her personal trainer.

Since appearing on “The Amazing Race” in 2012, Macias has moved onto a career in broadcasting. She co-hosted a morning radio show in San Antonio, and currently works as a stadium announcer for a pair of minor league sports franchises.