A social media feud erupted between the former spouses on Friday, Aug. 10.
First, a Twitter fan claimed that Marroquin got girls only because of his Teen Mom 2 fame. Then Lowry wrote in response, "When I met Javi, he lied to me and told me he didn't know who I was... creeped his Twitter and sure as s--t he had tweeted me a week prior. That was after he got picked to do MTV's True Life and the girl refused."
But Lowry, 26, wound up tying the knot with Marroquin, 25, and when someone asked her why, the reality star replied, "I was young and ignored red flags apparently. What most would call desperate."
Marroquin, the father of Lowry's son, Lincoln, 4, fired back, writing via Twitter, "Stop tweeting about me. Stop seeking validation. Move on, please. Like, we're grown now...That's for the birds."
The Teen Mom 2 dad later deleted that tweet, "Because we're too grown to be going back and fourth. I'm enjoying my life as privately as I can. I don't need to be looking for validation from social media."
Marroquin, who is expecting a baby with girlfriend Lauren Comeau, also wrote that he's "passed that stage in his life."
RadarOnline.com exclusively revealed they are expecting a boy in our photos of their fun recent gender reveal party.
Marroquin previously dated Comeau from July to September 2017. They reconciled this March after he broke up with co-star Briana DeJesus in January.
He and Comeau will soon live together in Delaware and wedding bells are in their future, he told Radar exclusively.
"Definitely in the future I will propose," Marroquin said, but added, "The focus is on the baby first."
Meanwhile, Lowry just celebrated her baby son Lux's first birthday with his daddy, her ex-beau Chris Lopez.
She is also proud mom to son Isaac, 8, with ex-boyfriend Jo Rivera.
But now, Lowry, who split with Marroquin in 2016, has started a social media feud.
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