After Bobbi Kristina Brown’s death, friends and family members of her boyfriend Nick Gordon, are worried that he may commit suicide.

Gordon -- who is the subject of a lawsuit over Bobbi Kristina's condition that led to her death and was not allowed to visit his girlfriend during the nearly six months that she was under medical care -- feels that Bobbi Kristina may have woken up had she heard his voice and his emotions are currently out of control, Hollywood Life reported late Sunday, citing sources.

“Nick is on suicide watch. He is out of control with regret and sadness. He keeps saying that if only (Bobbi Kristina) had heard his voice, things would have been different. She may have lived,” a source told Hollywood Life.

Bobbi Kristina, 22, died Sunday at the Peachtree Christian Hospice in Georgia, after being found unresponsive in the bathtub of her house in Atlanta in January. The aspiring actress shared the house with Gordon, who could reportedly also be treated as a suspect in a criminal investigation.

Gordon, who was rumored to have married Bobbi Kristina, faces a $10 million lawsuit filed by her conservator. The case alleges that Gordon beat her causing "substantial" physical harm and also transferred funds from her account after she was found unconscious. Bobbi Kristina reportedly had bruises when she was found in her bathtub and Gordon reportedly claimed they were the result of his efforts to revive her. Investigators reportedly suspect that “Nick Gordon’s motive for murder” could have been the fear of being dumped by Bobbi Kristina.

Since she was hospitalized in January, many witnesses spoke up about Bobbi Kristina’s relationship with Gordon. On Jan. 31, the day she was found unconscious, Bobbi Kristina was supposed to meet a friend to discuss a “revelation” about Gordon, according to reports citing sources. The friend, reports speculated, could be Bess Beckmann, who is currently working with the Georgia Bureau of Investigation to find out if Gordon physically and mentally abused her.

Bobbi Kristina, who suffered irreversible brain damage from the incident, had initially been placed in a medically-induced coma at Emory University Hospital and was breathing through a ventilator. She was later moved to the DeKalb Medical Facility in March and then to hospice care in June. After moving her to the hospice, her family said that her condition continued to deteriorate and that she was in “God’s hands now.”

On Sunday, friends and family members expressed their grief over the 22-year-old's death on social media.

"Bobbi Kristina Brown passed away on Sunday, July 26, 2015, surrounded by her family. She is finally at peace in the arms of God. We want to again thank everyone for their tremendous amount of love and support these last few months," Bobbi Kristina’s family said in a statement on Sunday.