“devastated” Robert Pattinson’s by cheating on him with her “Snow White and the Huntsman” director, she similarly broke the heart of Michael Angarano, the boyfriend of four years she dropped for her “Twilight” co-star in 2009.

The young couple first got together in 2005 when they were teens after they met on the set of the indie drama “Speak” and quickly fell in love.

"It was an intimate set and everyone really bonded," the source adds.

Some may argue against it, claiming that people can change and such, but, we swear, Kristen Stewart is the biggest form of evidence to the contrary.

We can prove it to you: The 26-year-old actress has a long history of cheating, dating back to her early days.

The two began dating after they met on the set of during the 2013 Sundance Film Festival on Jan. The couple held hands and cuddled close for photographers.

PHOTOS: Stars who fell in love on set Angarano also joined Temple at the cast dinner that same day.

The 26-year-old revealed that the pair had been on and off ‘a couple of times’ but that this time finally felt right – and she opened up on her time with Robert, admitting that she hated everything that they did becoming ‘immediately trivialised’.

‘We were turned into these characters and placed into this ridiculous comic book, and I was like, “That’s mine.

You’re making my relationship something that it’s not.’ I didn’t like that. I was like, ‘Actually, to hide this provides the implication that I’m not down with it or I’m ashamed of it’, so I had to alter how I approached being in public.

“It opened my life up and I’m so much happier.” Appearing on SNL earlier this year, she addressed Donald Trump’s infamous Twitter obsession with her.

She said: “When I was dating a guy I was hiding everything that I did because everything personal felt like it was immediately trivialised, so I didn’t like it.