Could this be the end of the road for Ariana Grande and Ethan Slater's relationship? Fans think they are doomed now after being... cursed?! You see, the 32-year-old pop star attended the MTV Video Music Awards on Sunday night - without her boyfriend by her side. That alone left fans worrying. However, one moment during the evening increased the concern online that the couple is heading toward a breakup very soon! What was it? Ari posed for a picture with BLACKPINK member Rosé! Ch-ch-check out the third photo (below): POV: you're friends with literally EVERYONE ???????? Ariana Grande you are s...