UH OH

MARC Jacobs is so jealous of couture king John Galliano, he loudly trash-mouths his rival during workouts at the David Barton Gym on West 23rd Street. Our spy snips, "Marc and his trainer always talk very loudly - it's annoying. All he does is complain about Galliano - even after [Galliano's best friend and right-hand man] Stephen Robinson died in April. It was disgusting. He's so jealous of John." We didn't call Jacobs for comment because the last time we did, his rep leaked the story to WWD.

OHDAMN. I choose Galliano over Jacobs though, sorry. Jacobs can be too much of a princess sometimes.