"Let her hear my voice," he Tweeted. "She will wake up!"

Credit: Christopher Polk/WireImage

As Bobbi Kristina Brown passes the three-week mark on life support in a Georgia hospital, her boyfriend, Nick Gordon, is making a public plea to be allowed to visit her.

“Let me in the hospital to see my girl and let her hear my voice,” he Tweeted on Saturday. “SHE WILL WAKE UP!!!” He later added: “Let me massage her, play her favorite music I believe it will help. If you ask [her father] Bobby anything abt [sic] he cannot answer.”

Gordon, 25, has been at odds with Brown’s family since well before the events of Jan. 31, when he and his friend Max Lomas found her unconscious in the bathtub at their Roswell, Georgia, home.

Last April, Marion “Pat” Houston, the wife of Whitney Houston‘s brother Gary and executor of the trust fund Whitney set up for her daughter, obtained a restraining order against Gordon after alleging he made threatening statements about her and her family.

Gordon has stayed away from the hospital in recent days. “He has respected his family’s wishes,” his lawyer Randy Kessler told PEOPLE. “But he desperately wants to be with the one he loves and continues to hope that his request will be granted.”