Dallas activist Dominique Alexander was indicted Monday on a felony family violence charge, Dallas County court records show.

Alexander, 30, was arrested in April after his longtime partner, Keyaira Saunders, told police he had shoved her around his home and tried to strangle her, according to an arrest warrant affidavit.

But days before a Dallas County grand jury delivered the indictment, Saunders signed an affidavit saying she felt betrayed because of the way police had handled the case and said she wanted “no part of this prosecution.”

She said she would not testify or participate in the case, according to the document, which Alexander’s attorney provided to The Dallas Morning News.

The affidavit appears to address the grand jury directly: “I am asking you to return a no bill because Dominique Alexander did not physically hurt me or threaten to hurt me," she said in the affidavit dated Nov. 19. “This is my sworn statement and if the truth means anything, I pray that you will let this stop here.”

Dominique Alexander was booked into Dallas County Jail on April 18. He was indicted Monday on a felony charge of continuous violence against the family. (Dallas County Sheriff's Department)

Alexander was initially arrested on two assault charges — one felony and one misdemeanor. He was indicted on a charge of continuous violence against the family, which is a felony, court records show.

Alexander denied the allegations Monday and said the indictment had "no merit.”

He added that he and his family want a speedy trial and that his attorneys will file a motion requesting one soon.

Saunders, who is the mother of Alexander’s children, could not be reached for comment Monday.

After his arrest, she said at a news conference that “it was a very scary thing to speak out” about the allegations.

“I just want to let everyone know that I am OK. My family is OK,” she said at the time. “We’re all sticking through this because this issue didn’t just happen to one person. It’s a whole family that’s affected.”

She told police that on April 10, she returned home from work and saw Alexander yelling at one of their children. She asked why he was angry, and Alexander then directed his anger at her, pushing her around the room, according to the affidavit.

She fell onto the couch after hitting her foot on a piece of furniture, and Alexander tried to strangle her, she told police. Saunders said she fled but returned after Alexander had calmed down. The affidavit states that she later saw a doctor, who confirmed that she had fractured a toe.

Supporters surround Keyaira Saunders as she speaks during a news conference at Dallas City Hall on April 19. (Ryan Michalesko / Staff Photographer)

Several days later, Saunders, a photographer, took photos of an acquaintance who had stopped at her house while he was traveling through town, police wrote in an arrest-warrant affidavit.

While Saunders was sleeping, Alexander used Saunders’ computer to look at her Facebook account, where he saw the photos she had taken earlier in the day and became “very angry,” according to the affidavit.

“Why did you have another man in my house?" he shouted, according to the affidavit.

He told Saunders she was disrespectful and started calling her names, the affidavit states. She told police she tried to leave several times but Alexander blocked the door, then head-butted her.

According to the affidavit, at one point Alexander said, “I know the chief of police and the DA. Who are you going to call?”

Alexander has met often with Police Chief U. Renee Hall and City Manager T.C. Broadnax through his work with the Next Generation Action Network, an activism organization he founded.

Alexander has led and been present at many protests and demonstrations in the Dallas area over the years, including several protests surrounding the fatal shooting of Botham Jean by former Dallas police Officer Amber Guyger. And when 9-year-old Brandoniya Bennett was shot in her home in Old East Dallas, Alexander spoke on behalf of her family.

Saunders recently ran to represent District 4 on the Dallas City Council but did not win the seat.

In her sworn Nov. 19 statement, she described the days leading up to her altercation with Alexander as “high stress” because of her City Council bid. She said she and Alexander had spent thousands of dollars and many hours working on her campaign.

“My partner, Dominique and I found that the stress brought out the absolute worst in our relationship,” she said in the statement. “We fought over things that days later seemed meaningless.”

Saunders said that Alexander yelled at her, got in her face and put his hands on her, but that he did not cause her “physical pain,” according to the affidavit.

“I was stressed, medicated for pain, bone tired and feeling attacked on all sides and not supported in the least at home,” she said.

Saunders said she contacted police after activist Jeff Hood drove her to the hospital. She said in the affidavit that she felt betrayed by Hood and the Dallas Police Department.

Hood called the case “unbelievably sad” Monday. He said that Saunders called him after the altercation and that he told her she should “do what felt right” but never pressured her to go to police.

“You can’t get an indictment without evidence,” Hood said. “I hope Keyaira’s actions in this situation get Dominique the help that he needs.”

In the affidavit, Saunders said, “All I wanted was for Dominique to get a class C ticket for losing his temper. This entire ordeal has been an almost unending nightmare.”

At the time of Alexander’s arrest, Chief Hall said the department will always take domestic violence allegations seriously, regardless of the "alleged perpetrator’s perceived status in the community.”

Dallas County District Attorney John Creuzot recused himself and his office from the case against Alexander, citing a conflict of interest. A special prosecutor, Gregg Long, was appointed to handle the case, court records show.

The district attorney’s office did not immediately respond to a phone call and email requesting comment about the indictment.

If Alexander is convicted of the third-degree felony continuous violence against the family, he could face two to 10 years in prison and up to a $10,000 fine.

He also has a pending theft case out of Denton County, which the Dallas Observer reported stems from a dispute with a financial company. The case is set for trial in May, online court records show.

As a condition of Alexander’s bond, he is ordered to stay away from Saunders, court records show.