People Magazine reports that celebrity couple Kristen Stewart and Robert Pattison have ended their three year relationship, again.

The two, most famous for starring in the "Twilight" movie saga, separated last year after Stewart was found having an affair with her married "Snow White and the Huntsmen" director, Rupert Sanders.

"There is one thing I've never understood: Why people cheat," Pattison said in an interview with Italian Vogue.

Although Stewart's affair became a public scandal, the couple reunited shortly after she issued a public plea to her on and off screen love interest, Pattinson.

"I'm deeply sorry for the hurt and embarrassment I've caused to those close to me and everyone this has affected. This momentary indiscretion has jeopardized the most important thing in my life, the person I love and respect the most, Rob [Pattinson]. I love him, I love him, I'm so sorry,"

Although the couple made up a few months later, sources say the indiscretion was a part of their most recent falling out.

"It was a lot of issues that came up."

While there may be trouble in paradise, sources close to the couple don't believe the split is for good.

"It's not fully over or he would have moved out. They will be back together in no time," the source stated.

Whether the split is for good remains to be seen, but one thing is clear - fans are less than enthused by Stewart.

She even earned the No. 1 spot as the "least trusted movie star in America" in a recent Reader's Digest poll.

Some have even taken to the social media site Twitter to express their opinions on Stewart, Pattinson, and their current situation.

"Robert Pattinson and Kristen Stewart broke up. Stewart is apparently so upset, she almost made a facial expression," Depressed Darth had to say about the split.

"Kristen Stewart and Robert Pattinson broke up after she caught him being bored senseless with a different coat rack," Holy Taco tweeted about the pair's separation.

A comment left by Letshopeitspermanent on an article about the pair's breakup posted by Perez Hilton suggests that it's really over.

"Their relationship has been crumbling since the day she cheated on him. End of story. The only thing that happened is that finally Rob got his head out of his ass, about time too. Congratulations."