American actress-singer Emma Roberts has once again broke up with her on-and-off boyfriend and Hollywood star Chord Overstreet, according to reports. The couple, who started dating one another in the summer of 2011, had called off their relationship in January this year, but Emma united with the Glee actor once again in April, Daily Telegraph reported. According to a close source, Roberts, 21, and Overstreet, 23, have had enough of one another. "They're done. The last few weeks have been really rough," the source said. Last month itself, the duo was seen together at the Nylon Young Hollywood party, but the differences have already surfaced by then, according to reports. "They posed for pictures. After that, the two were on opposite sides of the VIP section. It's a really immature relationship. All they did was fight. They're just on two different paths in life. They just grew apart and decided to part ways," the source added.