Well, she didn't say that in so many words, but she is definitely the yin to his yang and even though they have this crazy long distance/busy tour schedules/fame thing going on, they're in it for the long haul.
Perrie recently told Now magazine: "I'm not a kind of 'in your face' person and neither is Zayn, so we just work. We have a good balance. When we're hyper, it's great, and when we're not it's great - it's the perfect balance...Always keep them on their toes, that's the main thing."
Oh, Zerrie. We heart you so hard.