Article continues below advertisementTaylor Swift may be facing one of the most awkward guest-list dilemmas in celebrity history - being "forced" to invite her close friend Zoë Kravitz to her wedding, even though the actress' new boyfriend is none other than Swift's notorious ex Harry Styles.Sources close to the 35-year-old singer say she's "dreading" the possibility the former One Direction star, 31, could show up beside Kravitz, 36, when she and fiancé Travis Kelce, 36, tie the knot.Article continues below advertisementSource: MEGATaylor Swift's pal Zoë Kravitz is dating Harry Styles.