More is coming out as to whyAdam Levine"crossed a line" in his marriage amid allegations he communicated with women that were not his wife.

On Monday, the 43-year-old Maroon 5 frontman denied having an affair butconfessed to “crossing a line"in his marriage toBehati Prinsloowhen he had “inappropriate” conversations with other women.

“He was messaging her, being flirtatious with three women. One of them — she specifically said they have a physical relationship but he is completely denying that to friends,” the source adds.

As for why the singer had flirtations outside his marriage, the source says Levine craves “female attention.”

“Why would he do this? He liked the attention,” the source tells PEOPLE. “He likes it more than most.”

Behati Prinsloo and Adam Levine.Amy Sussman/Getty

Behati Prinsloo and Adam Levine attend the Baby2Baby 10-Year Gala presented by Paul Mitchel

The source adds that “during COVID-19” Levine “was isolated,” however he and Prinsloo, 34, “definitely didn’t break up and they weren’t on a break.”

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Cheating accusations against Levine spiraled after Instagram model Sumner Stroh claimed in a now-viral TikTok that she had a year-long affair with Levine. Stroh did not provide dates as to when the alleged relationship took place, but shared screenshots of apparent Instagram DMs from the musician, including a note from April after she claimed they’d stopped speaking.

The source tells PEOPLE that the request showed “very bad judgment.”

Adam Levine/Instagram

adam levine

Levine and Prinsloo, married in 2014 are parents to daughtersDusty Rose, 6 this month, andGio Grace, 4, and areexpecting a third child.

Addressing the rumors in a statement shared on Instagram Tuesday morning, Levine wrote, “A lot is being said about me right now and I want to clear the air. I used poor judgment in speaking with anyone other than my wife in ANY kind of flirtatious manner. I did not have an affair, nevertheless, I crossed the line during a regrettable period in my life.”

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He continued, “In certain instances it became inappropriate; I have addressed that and taken proactive steps to remedy this with my family. My wife and my family is all I care about in this world. To be this naive and stupid enough to risk the only thing that truly matters to me was the greatest mistake I could ever make. I will never make it again. I take full responsibility. We will get through it. And we will get through it together.”

source: people.com