’s leading lady Kristen Stewart is said to be far from happy with her castmate Nikki Reed, over her alleged fling with boyfriend Robert Pattinson.

Nikki and Rob are rumoured to have hooked up years ago, and it’s said to be something that’s really irking poor Kristen now that Robert’s her man.

A source told US Star magazine that the former best buds are hardly speaking now.

“Kristen has never forgiven Nikki for the fling she had with Rob. Kristen never confronted Rob about the affair, she just put the blame on Nikki and accused her of pursuing him.”

If the rumours are true then it seems Kristen might be making a mountain out of a molehill. After all, Nikki is happily loved up after recently marrying former American Idol contestant Paul McDonald, following a whirlwind romance.

And Kristen and Rob’s relationship seems to be better than ever too, with the pair reportedly ready to move into the perfect love nest in London’s Notting Hill, while Kristen shoots scenes for Snow White and the Huntsman.

The couple are also said to be sending out a joint holiday card to family and friends this Christmas.

And according to insiders, Rob and Kristen are even planning to take the ultimate plunge and get married – with sources saying Rob is currently planning the perfect proposal!

I do not know if any of these are true. Just remember that in the past there have been many stories claiming Kristen was pregnant and the pair were engaged and getting married and all that .Also remember that the ”Source” that told Jamie campbell Bower was getting married was true.