‘You’re bitter’: Gigi Hadid just threw SERIOUS shade at one Twitter troll

Like any twenty-something who's smitten with someone new, Gigi Hadid hasn't been able to resist the odd post about Zayn Malik on her social media accounts.

Cosy couple selfies, snaps of her new man asleep on her couch, it's all there – but that doesn't mean she's going to let people get away with saying nasty things about her or her new relationship.

After posting a photo of her Pillowtalk-ing boyfriend to Twitter last night, the model got a few needlessly negative comments from followers. In true Gigi style through, she had an ice-cold comeback.

The drama started when Gigi posted this sexy snap of Zayn with the caption "I mean…":

Within minutes, Twitter user @modelior stepped in to tell the model to "practise how to walk properly instead of having a new bf every 2 weeks."

Ouch. But Gigi's retort was even harsher, and we kind of love her for it:

"I've dated 3 guys in 3 yrs, hun," the 20-year-old wrote, referencing her previous relationships with Cody Simspon and Joe Jonas. 

"My walk can always get better; I hope the unrelated bitterness in ur heart can too."

YAAAAS, Gigi.

Zayn also weighed in recently on the crazy hype that his new relationship – or any relationship, for that matter – stirs up in the media.

"I try to keep the two very separate. I try to, as much as I can. But there's only so much you can do," he told Complex of the blurred lines between his public and private life.

"I'm learning to deal with it. It's just one of those things now, in the background. I just leave it as a bit of a noise in the background."