India, July 2 -- Coldplay frontman Chris Martin and actor Dakota Johnson's fairytale romance has officially fizzled out, and reports suggest it was not exactly an amicable split. Insiders revealed that Dakota called off the engagement after growing weary of the Chris's "clingy and controlling behaviour". The two reportedly started dating in October 2017. Now, while Chris reportedly nurses a bruised heart, Dakota is making it clear to friends that there's no looking back. "Dakota (35) loved Chris (48). She still does, but he became way too controlling and dependent on her in the end. It became suffocating and unbearable to live with. If she went away or wasn't answering his calls for any length of time, he'd fly off the handle - even when they were in the same city," a source told to RadarOnline. The insider added, "He was also a sourpuss who didn't approve of her going out with friends, and preferred to stay in often instead of enjoying a social life." In April, it was reported that Dakota's friends were concerned that the publicity-shy singer was holding her back from meeting filmmakers to further her acting career. The insider added, "Dakota is getting her groove back now and looking up her old friends - many of whom Chris wouldn't tolerate for one reason or another - and they're cheering this split from the rooftops and so glad to have her back." However, the actor's friends are concerned about her and worry that she still has a soft corner for Martin and might take him back. The source shared, "The only worry among her friends is the idea that she may eventually take him back. But Dakota is swearing up and down that it's for good this time - mainly because she can't stomach being with a guy who won't allow her basic liberty." HTC...