Selena Gomez is determined to convince her mother, Mandy Teefey, to give her on-again, off-again boyfriend, Justin Bieber, a second chance.

Months after reconciling their previously troubled relationship, Gomez and Bieber are going strong and prepared to make amends with Teefey through therapy. That said, Teefey is reportedly having a hard time letting go of the past.

“Selena’s family will never forget how appallingly Justin treated her,” a source told Radar Online on Jan. 25. “It breaks Selena’s heart that her mom still can’t forgive Justin and accept him in her life, even though she’s begged her mom to give him a chance.”

As fans of Jelena may recall, Gomez and Bieber were on and off for years, and Bieber often stepped out with other women, including Hailey Baldwin and Chantel Jeffries. Then in August 2016, they came to blows in a major way as Bieber accused Gomez of using him for attention, and she accused him of cheating on her on a number of occasions.

Although Gomez and Bieber kept their distance for over a year after their Instagram feud, they ultimately reunited as Gomez's romance with The Weeknd faded out. Now, Gomez is putting her trust in therapy as their relationship continues.

According to Radar Online, Gomez's plan is for Teefey and Bieber to meet with a therapist and work through their issues.

“Selena will be there for some sessions, but not others," the insider said.

Gomez's trouble with her mother became evident at the end of last year after Teefey was allegedly hospitalized after a fight over her daughter's new relationship. Then a short time later, Gomez and Teefey further confirmed their feud when they unfollowed each other on social media.

As Gomez and Teefey's relationship continues to be strained, Bieber's relationship with his own mother, Patti Mallette, appears to be in a great place. Earlier this month, they traveled together to the Maldives for a family vacation.

“It serves as a display of what he’s hoping Selena can achieve with her mother someday,” an insider told Hollywood Life of Bieber's interaction with his mother. “He feels terrible for Selena that her mother won’t accept him, and sympathizes with her and what she’s dealing with."