The lovebirds two-year relationship came to an end over what a source described to E! News as a difference in lifestyles.
"They were just going in different directions," a source shared. "Her job requires her to be in the public eye—the more she's out there, the more she shares, the more work she gets."
"Toward the end it just wasn't meshing like it used to," the insider added. "There weren't big arguments, but there was frustration on both sides."
A second source said that despite the "ton of love" they have for one another, "Being in a serious relationship just wasn't practical."
Are you a fan of Zayn's new ink? Let us know in the comments!