90 Day Fiance is a show about people finding each other across continents and oceans, giving up everything for love.
Naturally, it is filled with some of the most toxic couples and the most vitriolic feuds that you can imagine.
Not all of that bile plays out on camera, either.
Behind the scenes and on social media, 90 Day Fiance stars will wage verbal wars on each other.
Sometimes, it's a rival from their season or a person who was almost family.
Other times, it's people who have only met once or twice, but experience loathing at first sight.
Take a look below and see the most intense feuds that have ever played out among the stars.
90 Day Fiance has a wealth of feuds
Fans may start watching for the controversial couples and the cute couples, but the feuds will keep you hooked for years -- because that's how long they can last.
First, let's address something obvious
A lot of these feuds involve Larissa Lima. Though she only entered the scene in Season 6, her relationship was the most talked about since Danielle and Mohamed. Her situation has changed, but for a long time, she was feuding with anyone who looked at her crossways.
First of all ...
We're not going to count every pair of exes on this list. Sometimes, they parted on good terms. Other times, they loathe each other but it's not quite feuding. But Colt resolved to try to get Larissa deported to Brazil, and Debbie is badmouthing her left and right. So we'd say that Larissa is feuding with them both, even though she is trying to move on.
Fernanda vs Larissa
Viewers who didn't keep up with the stars on social media at all were introduced to this feud at the Tell All special. Larissa saw Fernanda as her rival for the title of best-looking 90 Day Fiance star. It was so bad that Larissa and Colt were late getting on set.
Jonathan Rivera got involved
Though he and Fernanda would split several weeks after the Tell All was filmed, he had his wife's back and feuded with both Larissa and Colt. On the tell all, this culminated in the hilarious moment when Larissa yelled "shut upee!" It broke the tension -- a little.
That didn't last
When Jonathan and Fernanda's marriage fizzled out in December, they didn't really share joint custody of their feuds, either.