Amber Portwood‘s arrest doesn’t mean she’s relapsed, a source close to her tells PEOPLE.

The source says that drugs were not a factor in thealleged violent disputebetween theTeen Mom OGstar and her boyfriend Andrew Glennon that led to her July 5 arrest.

“The situation is a little more complicated than what’s been reported. There was an argument that escalated and now they aren’t allowed to communicate,” the source says. “There were no drugs involved.”

Portwood, 29, was arrested and charged with domestic battery on July 5 after allegedly assaulting Glennon, 35, while he was holding their 1-year-old sonJamesin his arms. On Tuesday, Glennon reportedly filed for sole custody of their son. And on Wednesday, Portwood was further charged with domestic battery, criminal recklessness committed with a deadly weapon and domestic battery committed in the presence of a child less than 16 years old, according toPage Six.

“This is a very challenging time for Amber, who loves her son more than anything,” the source adds. “Now she will need to determine next steps following what just occurred, but she has a great lawyer.”

Amber Portwood/Instagram

Amber Portwood Andrew Glennon son

“It wasn’t [until] I got pregnant with my daughter Leah that I stopped doing drugs all together ’cause I was so scared of something happening to her,” she said on the Dopey Podcast.

Her drug abuse began once again a few months after welcoming her now 10-year-old daughter, who she shares with ex-boyfriend Gary Shirley.

“Six to seven months after Leah was born, I started taking opiates again, medication for my back for my scoliosis and I got addicted from there,” Portwood said.

She got clean during her 17-month prison sentence (stemming from a 2010 fight with Shirley) and has said she’s remained sober since.

The report also claims that Portwood hit Glennon with her shoe on the right side of his neck, causing pain and abrasions, according to TMZ. The child was unharmed.

Additionally, Glennon says this was not the first time Portwood has hit him, TMZ reported.

Marion County Police Department

Amber Portwood

She welcomed James with Glennon on May 8, 2018. She also shares 10-year-old daughterLeahwith Shirley. (The two appeared on16 and PregnantandTeen Momtogether before splitting.)

source: people.com