Gigi Hadid and Zayn Malik: Still Holding On

Gigi Hadid has a funny way of breaking up -- a week after she and Zayn Malik supposedly called it quits ... she's still clinging to him.

The alleged exes cruised out of her NYC apartment building, but judging by the way Gigi was caressing his arm ... they ain't done. Looks like Papa Mohamed did know best, after all.

Sorry, Taylor Swift ... the squad-wide breakup epidemic is now officially over.