There has been so much speculation for quite some time now, as to whether Robert Pattinson and Kristen Stewart are really in a relationship or not. Well according to entertainment.stv.tv, they are supposedly very much in love.
But reports say, that the couple have been told to keep their relationship quiet, well for now anyway. Kristen Stewart or Robert Pattinson have never confirmed that they are dating, but now we know the reason for this.

The movie’s bosses fear that if the couple’s relationship was revealed, then it could potentially jeopardize the next movie “New Moon.” The producers don’t want Rob or Kristen to say anything, until they feel the time is right.
Kristen Stewart talks Robert Pattinson relationship
Robert Pattinson and Kristen Stewart in Limo
Robert Pattinson and Kristen Stewart public show of affection