Fresh off the press tour for her most recent movie alongside co-star KJ Apa, <a href="https://www.lofficielusa.com/film-tv/madelyn-cline-outer-banks-i-know-what-you-did-last-summer" target="_blank" rel="noopener">Madelyn Cline</a>'s recent NYC getaway has sparked plenty of speculation on the possibility of a brand-new beau.&nbsp;
The&nbsp;<a href="https://www.lofficielusa.com/pop-culture/madelyn-cline-breakup-outer-banks-i-know-what-you-did-last-summer" target="_blank" rel="noopener">Outer Banks</a>&nbsp;star was spotted around the city in September 2025 with a mystery man, but after a video of the star made the rounds online, an eagle-eyed <a href="https://www.deuxmoi.world/latest/madelyn-clines-new-royal-romance-a-prince-a-kiss-and-a-confusing-timeline" target="_blank" rel="noopener">Deux Moi</a> staffer noted a familiar face by Cline's side&mdash;none other than Prince Constantine-Alexios, eldest son of the crown prince and princess of Greece.&nbsp;&nbsp;
The pair were spotted kissing just days before the video went viral, and subsequent social media posts have put together quite a picture: Cline, the prince, and his sister, model and tastemaker Maria-Olympia, all out and about at a local bar. Constantine-Alexios' Instagram story of Cline facing away from the camera also certainly didn't help to quell fan rumors.&nbsp;
Given how fresh the relationship appears to be, details beyond the identity of Cline's <a href="https://www.lofficielusa.com/pop-culture/celebrities-who-married-into-royalty-royal-family" target="_blank" rel="noopener">royal</a> beau are limited&mdash;sorry helpless romantics, it's not yet clear how, where, when, or why the pair first met.&nbsp;
26-year-old Constantine-Alexios comes from a long line of royals&mdash;plus, his godfather is Prince William&mdash;and boasts a wide array of interests endeavors range from sculpting and painting to modeling for major fashion labels like Dior. The royal has previously dated Poppy Delevingne and Brooks Nader.&nbsp;
Though just weeks ago, fans thought that Cline may have a budding romance with Zack Bia brewing&mdash;the latest instance in a string of speculations occurring between the pair since 2022&mdash;neither party has commented on the nature of their relationship. Looking at recent eyewitness proof, though, it seems the Bia ship has sailed&mdash;at least where fans are concerned. The&nbsp;I Know What You Did Last Summer&nbsp;actress has <span style="background-color: transparent; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-ligatures: inherit; font-variant-caps: inherit; font-weight: inherit; letter-spacing: 0px;">previously been romantically linked to Chase Stokes, <a href="https://www.lofficielusa.com/pop-culture/who-is-elsie-hewitt-pete-davidson-girlfriend-benny-blanco-ex" target="_blank" rel="noopener">Pete Davidson</a>, and Jackson Guthy, among others.&nbsp;

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