Justin Bieber and Selena Gomez were involved in a public war. But a new report claims that Selena Gomez was "stalking" Justin on Instagram. He still has a major impact on her life.

 It is also rumoured that she has plans for motherhood.

Although it has been a few months since they got estranged, the boyfriend "is still a toxic presence" in her life, said sources. During her "three-month rehab stay," she had got "so wrapped up" in his personal life that it "prompted" her to try out the treatment facility. She was "stalking" him on social media, according to Life and Style.

She "would drink a lot and could barely do anything but talk or think about Justin," and started "bombarding her friends" with pictures of herself and Bieber from the beginning of their relationship, said the source. At the time, he had been dating Sofia Richie.

"It was creepy," noted the insider. "She wouldn't stop. She said she missed him and the pictures made her happy. But her friends thought it just made her look sick."

Being "extremely jealous and possessive," the source said she "felt like she had to keep up with" her boyfriend. "She would drink and smoke, and then she got into weed and partying," added the source.

Selena cancelled her Revival Tour. After battling with Justin on Instagram over Sofia, the "Good for You" songstress "vowed not to contact the 'Cold Water' crooner" while in rehab. But ultimately, "she eventually reached out to him."

"Her addiction to Justin Bieber is what everyone is afraid is going to take the ultimate toll," added the source. "Justin takes her to a dark place mentally, and she really can't let go."

Meanwhile, she is also longing to become a mother, claims Celebdirty Laundry. She is reported to be "not taking any chances with her future as a mom and that's why she made the decision to freeze her eggs."

Sources told the media outlet that Selena Gomez "froze her eggs before she started chemotherapy," as part of her lupus treatment. The source noted that it is "very common for young women having chemo to do this," and added that the songstress "hopes to be a mom some day."