Polyamory is complicated. Estranged polyamorous lovers Bella Thorne and Tana Mongeau are slamming each other on Twitter, and it’s getting pretty awkward.

It all came to a head after Mongeau was spotted at dinner with Thorne’s ex, the rapper Mod Sun. All three of them were in a relationship (it's called a throuple), but Mongeau exited before Thorne and Sun broke up for good at Coachella in April. 

Since then, Mongeau has gotten engaged to Internet personality star Jake Paul and Throne is not having  any of it it. 

Thorne vented: “Tana and I are no longer good. She broke girl code I’m over it."

Mongeau tweeted: "????? imagine taking every time ur mad at me to twitter but then telling ppl how much u care about me……………….. wtf is this b :/."

Thorne fired back: "U legit started dating me for twitter.. how about u answer ur phone and talk to me instead of being on Twitter."

Mongeau then responded: "dude what are you doing bella? like i have no idea why you’re mad. i’ve been texting you every minute since you tweeted, and for you to be tweeting me something as hurtful as saying I dated you for Twitter is literally f—ing nuts & if you honestly think that damn i lost you."

Mongeau and Paul have been dating for three months and plan to marry next weekend. Thorne is now reportedly dating rocker Ben Mascolo