Paris, March 6 (IANS) Supermodel Gigi Hadid and singer Zayn Malik's love for each other can't get any stronger, says a source.Now a year and half into their relationship, it appears Gigi and Zayn are closer than ever before. A source told eonline.com: "Their love can't get any stronger" and added that they are in "awe of each other". The supermodel took time off from her Paris Fashion Week schedule to enjoy her Friday evening with the former One Direction star.According to the source, the pair is having a "nice yet busy time" in Paris, and Zayn has gone out of his way to make "romance happen" in between their scheduled appearances. "When they are in the same city they don't leave each other's side. The high fashion events are mainly work-related, but doing it together is always more enjoyable," the source added.And while the source said Gigi, 21, and Zayn, 24, know they are too young to discuss marriage, the "Pillowtalk" hitmaker "always tells her that he sees her in his future". The source also said: "The main thing they love to do is just chill at home and snuggle, order in and watch TV and movies."