28/10/2014 09:03 GMT | Updated 20/05/2015 10:12 BST

Jennifer Lawrence Ends Relationship With Chris Martin (Already)

Jennifer Lawrence and Chris Martin's relationship is over almost before it started, after just four months of dating. But why?

David Fisher/REX
Mandatory Credit: Photo by David Fisher/REX (4193443x) Jennifer Lawrence 'Serena' film premiere, 58th BFI London Film Festival, London, Britain - 13 Oct 2014

Jen is reportedly the one who called time on the romance, with a source telling People magazine: "Jen is the one who broke it off with Chris."

A number of different reasons have been suggested, with the pair's busy schedules being one of them.

A source told US Weekly magazine that the relationship was "rocky" due to "insane schedules", adding: "They really like each other. But it's just so complicated with so much going on."

Jennifer Lawrence And Chris Martin Break Up

The pair started dating in June, shortly after J-Law split from long-term boyfriend Nicholas Hoult. Chris, meanwhile, had announced he and Gwyneth Paltrow, his wife of 10 years, were "consciously uncoupling" back in March.

AKM-GSI / Splash News
UK CLIENTS MUST CREDIT: AKM-GSI ONLY<BR/> Part 2 - It appears that Chris Martin may be low maintenance as the

The former couple, however, have two children, Moses and Apple, together, and some sources say it was their continuing close bond that pushed Chris and Jen apart.

The split comes just days after Chris was spotted on a family dinner at a sushi restaurant with Gwyneth, who was reportedly seen stroking his face.

A source told the Mail Online: "Jen got tired of watching Chris play happy families with Gwyn and was annoyed that he was trying to keep her hidden away."

Jen and Chris attempted to keep their relationship as private as possible, but became a little more public in the last few weeks. Earlier this month, she was seen supporting Chris at his guest performance during a Kings Of Leon concert at the Hollywood Bowl.

And she also went to see him perform with Coldplay at the iHeart Radio Music Festival completely nailing date night chic, btw.

They seemed like a perfect pairing, but alas it wasn't to be.

LOVE J-LAW? Flick through our gallery pics to see what Chris is missing...