She ended up flying solo.

A Brazilian model claims her relationship ended because she traveled in business class while her boyfriend flew in coach during their first vacation together.

“I didn’t think it would become an issue,” Ju Isen, 39, told Jam Press of getting put on the no-guy list.

The stunner, known for posting captivating photos to delight her more than 2.5 million Instagram fans, had been dating the elusive partner for roughly three months when they arranged their inaugural trip to mark the beginning stage of their romance.

Fittingly, they settled on Paris — the city of love.

But when it came time to book the flights, Isen’s new beau felt that “business class was too expensive,” she explained.

This did not sit well with Isen, who emphasized her preference for “comfort while traveling.” She explained, “I indulge in that luxury whenever possible — I’ve always traveled in this manner,” stating she wouldn’t alter her travel choice for her significant other.

Isen ended up paying for business class out of her own pocket, while her beau chose to stick with economy.

“Each of us chose what fit our budget and beliefs,” said Isen. “I didn’t want to pay for his ticket because I believe everyone should choose how they want to travel.

She didn’t think their sky-high separation was an issue, until after booking, when her boyfriend “began acting distant” and told her she should sacrifice comfort to sit with him.

“He started to change and made passive-aggressive comments, saying it wasn’t fair that I was in another class and claimed it showed a lack of unity,” recounted Isen.

However, she blamed her beau for being selfish, claiming that “deep down, he didn’t want to share anything.”

“He wanted me to shrink myself to fit his reality,” Isen argued. “He tried to make me feel guilty for choosing something better for myself. It felt like he couldn’t handle the fact that I wasn’t depending on him.”

Things boiled over in the days leading up to the trip until her beau decided to break things off, citing the business class debacle as the “breaking point.”

“He broke up with me over the phone, saying the whole flight situation showed we were on different levels and that it wouldn’t work,” she said. “We haven’t spoken since.”

Isen, who was flying from her hometown of Sao Paulo, refused to let their split spoil the vacation and decided to jet to the City Of Light by herself.

In retrospect, the social media star believes that flying solo was “for the best.”

“I traveled alone and enjoyed it my own way,” declared Isen. “[What happened] was a wake-up call for me – I realized [that] I don’t want to be with someone who tries to make me smaller.”

Isen explained that it wasn’t an issue of dating outside her “class”, claiming that her former flame is actually richer than her.

“What’s ironic is that he actually has more money than I do, but still got upset with my choice,” she said. “He didn’t refuse business class because he couldn’t afford it – he just thought it was an unnecessary expense.”

Isen has vowed to never slum it in the sky.

“I prefer investing in travel comfort, especially on long-haul flights,” she said. “And if I can afford it and it makes the trip more comfortable, why not?”

The model concluded, “I work hard and I’m not going to apologize for enjoying the benefits of that.”

In fact, her former paramour isn’t the first person Isen’s ditched to ride at the front of the plane.

Isen went viral in May after revealing that she shells out $13,000 to travel first-class so she can avoid getting ogled by the “creeps” in coach.