The Bug, the Bird and the Bats
Everyone knows that Damian Wayne doesn't have any friends; he pushes away anyone who wants to get close to him, denies those close to him the knowledge that he cares, vehemently refuses to be in the presence of wanna-be suitors. He simply isn’t social.
Marinette Dupain-Cheng changed that, changed the way he views friendship- -though he'd still deny that he's friends with anyone- -and it's not long before their friendship, that grew when she arrived at Gotham Academy, turns into romance, which turns into shared promises and midnight kisses.
Once again everything would change when Marinette was brought back to France by her parents, them declaring that it's been long enough for her to be okay finishing her senior year at 'home'. Only, Paris wasn't home to her, not anymore. Senior year started just as she expected: Immediately bombarded by her old peers and Lila, questioning her, begging for answers, picking apart the differences in how they remember her and how she is now. She hated it.
It was only when Marinette heard Lila's lies of being the girlfriend to the heir of Wayne Enterprises himself that she decides to end it all. She had to stop the lies, and Marinette knew how.