George Clooney isn't exactly single (yet) ... TMZ has learned he and Stacy Keibler are STILL living together -- despite rumors of a break-up -- BUT an expiration date could be fast approaching.
Multiple reports have surfaced that Clooney and Keibler called it quits after 2 years of dating (which is like a decade in Clooney years). The couple hasn't been seen together since March and spent the 4th of July on opposite ends of the earth.
But sources close to C&K tell TMZ ... the duo is still shacking up, so it's not totally over. However, we're told there's definitely trouble in paradise -- and it's all because of the couple's hectic schedules.