OVER: Calvin Klein and Nick Gruber taking 'a break' in relationship!

CALVIN KLEIN is flying solo — for now, reports the NY Daily News. After we reported that the 67-year-old fashion designer raised eyebrows socializing at the Dream Downtown hotel’s Ph-D nightclub without 21-year-old boyfriend Nick Gruber on Sunday morning, a source informed tells us the two are not together at the moment. 

Klein and Gruber, who began dating in the spring of 2010, are currently “on a break,” says the source, who’s close to both men. “They could get back together, but who knows?” says the insider. Klein and Gruber’s relationship has been described as “on-and-off” by those close to them, although yesterday nightlife promoter and radio personality Daniel Nardicio, who claims to be working (and allegedly sleeping) with Gruber, told the Village Voice that Nick “really loves Calvin and wants to spend the rest of his life with him.” Is it Really Love?