After being reported to be officially dating, couple Kristen Stewart and St. Vincent steps out in a party last week and allegedly had an awkward encounter with St. Vincent's ex-girlfriend, Cara Delevingne. Check out the details below.

Reports have surfaced online that the trio were all spotted attending a star-studded evening party in New York last week. According to witnesses, there was no exchange of words between the three but it was pretty obvious that Delevingne was not too pleased to see her ex, St. Vincent with her new flame, Stewart.

According to reports, the 24-year-old model immediately left the party with pals Dakota Johnson and Taylor Swift. Sources claim that Delevingne was "fuming" after seeing the couple. It can be recalled that there were rumors suggesting that Stewart and St. Vincent started their relationship while the singer was still with Delevingne, thus the British model is none too pleased with seeing them.

Meanwhile, rumors suggest that despite Stewart and St. Vincent's current status, the 34-year-old musician is reportedly still not over Delevingne. "Annie [St Vincent] is totally in love with Kirsten [Stewart] but she still has feelings for Cara [Delevingne]," a source told HollywoodLife. "It ended dramatically and neither of them really wanted to break up, but neither of them could seem to make it work with their hectic schedules."

The same source added that St. Vincent is "torn" between Stewart and Delevingne and that what they have right now is a "classic love triangle." The source said, "It really is a love triangle in the classic sense. Annie is torn between Kristen and Cara, but her focus is on Kristen right now. Kristen is proceeding cautiously because she knows she could get hurt."

As of this writing, both Stewart and St. Vincent have not addressed the said rumors being thrown at them. Make sure to check back for more updates about this couple.