The pair was spotted enjoying a night out together at a gig by Australian boyband 5 Seconds of Summer at London's Shepherd's Bush Empire on Tuesday.Palvin posted a picture of herself with Horan at the event and reports suggest they were seen kissing and holding hands throughout the show.The lingerie model quickly deleted the snap from her Instagram account after receiving a backlash from Horan's fans, and wrote: "About my last post. Can't deal w (with) what it's sayin (sic) on Twitter. Sorry. Just hope u (you) don't creat drama (sic)."The couple was first linked in December, but the long-distance romance reportedly fizzled out by Valentine's Day, when Palvin was seen on a date with a mystery man.