An e-commerce website has generated a buzz with a line of T-shirts that read: “Kristen Stewart is a Trampire.”

The message – a reference to the Twilight star’s recent cheating scandal – appears on several shirts sold by online retailer, Skreened. Last month, the 22-year-old apologized to her boyfriend of three years, Robert Pattinson, for having a fling with 41-year-old married film director, Rupert Sanders.

The $18 garments, available in several colors, have upset some fans of the vampire franchise. ”Seriously, this is just disgusting. Way to promote bullying! People really need to get a life,” one fan who visited the site wrote. “People who are going to wear this kind of t-shirt are so miserable … shame on you! Care about people instead of laughing about them,” wrote another.

The message on the shirt is a reference to funnyman Will Ferrell’s comments about the actress during a recent US talk show appearance.

The site also sells T-shirts in support of Pattinson, 26, that read: “Robert Pattinson Deserves Better.”