Emma Stone has been caught in a web of jealousy as her Spider-Man star boyfriend, Andrew Garfield ,flirts up a storm with his latest co-star, according to an exclusive new report in Star magazine.

The 24-year-old beauty, who first met Garfield back in 2010 when she played his girlfriend in the last Spider-Man flick, is reportedly none too happy about the Brit actor’s budding relationship with Shailene Woodley, who is playing his new love interest in the sequel that’s currently filming.

PHOTOS: Emma Stone Shows Off Her Sexier Side In W Magazine

Shailene has been “having a blast” with Andrew on set: “They really hit it off,” a source tells Star.

The growing friendship certainly seems to have irked Emma who took to Twitter to vent her anger on March 2 — posting an anagram, which decoded to: “Andrew and Shailene sitting in a tree.”

PHOTOS: Emma Stone and Andrew Garfield Use Paparazzi For A Good Cause

Emma was subsequently ordered to take it down though, Star reports, after Andrew scolded her for her immaturity.

For more on the Spider-Man on-set drama and jealousies, pick up the new issue of Star magazine — on newsstands Thursday.