Gigi Hadid took to Instagram on Valentine's Day 2020 to share a sweet snap of Zayn Malik.Hadid referred to Malik as her Valentine.The on-off couple appeared to confirm their reunion last month when they stepped out together in New York for Malik's 27th birthday.It looks as though Gigi Hadid and Zayn Malik are officially back on.The on-again-off-again couple was photographed showing some PDA in January 2019 during a night out in Manhattan with Bella Hadid and Dua Lipa (who is dating Anwar Hadid).