A few weeks ago we reported on the sightings of Reese and Jake Gyllenhaal palling around NYC together. Sources very close to the two now tell Perez Hilton that the friends are absolutely romantically involved."They are 100% dating," says a close insider. "Reese and Jake are being smart about things and keeping their relationship very discrete and out of the public eye."The couple met last year while filming their new movie Rendition.I have a little Bob Marley playing in my head right now:Is this love - is this love - is this love -Is this love that I'm feelin'?Is this love - is this love - is this love -Is this love that I'm feelin'?I wanna know - wanna know - wanna know now!I got to know - got to know - got to know now!