Jennifer Lawrence is "furious" with Chris Martin.

Jennifer Lawrence

Jennifer Lawrence

The 'Hunger Games' star is reportedly angry with her ex-boyfriend for flaunting his new relationship with 'Peaky Blinders' actress Annabelle Wallis and feels like she was his "rebound girl" following his split from his wife of 12 years Gwyneth Paltrow.

A source told heat magazine: "She fired off an angry email to him when she saw the photos online. She still had some stuff at his place in LA and she was pretty p***ed about the whole thing.

"Jen can't believe she didn't see it all along - it looks like Chris was using her to get over Gwyneth. Nobody wanted to think Jen was his rebound girl, but it definitely seems that way now.

"Jen feels hurt. I think she kept breaking things off with him, but he'd always convince her to come back to him. It felt like he was stringing her along."

Meanwhile, the Coldplay frontman is said to be the happiest he's been for a while with the 31-year-old actress.

An insider shared: "She puts a huge smile on Chris' face. He's happier than he's been in a long time. He just wants to settle down again."