Bobbi Kristina Brown's boyfriend Nick Gordon, who has not been allowed to visit his girlfriend since her hospitalization in late January, remembered her by posting photos of the two together on social media on Friday. The 25-year-old has made several pleas to the Browns and the Houstons to grant him permission to see her.

The posts came the day the chief of police at Roswell Police Department said that the "​criminal investigations [in the case] remain active." Though some reports claimed that Gordon may have been responsible for Bobbi Kristina's current condition, police have not said he is a suspect.

Gordon posted two photos with Bobbi Kristina and a cryptic message on his Twitter account.

Gordon was banned from the hospital after Bobbi Kristina’s family suspected him of foul play. Multiple sources told TMZ in February that there has been a history of violence in the Brown-Gordon relationship.

"Criminal investigations remain active until a decision is made not to prosecute an individual(s) or a person is prosecuted, adjudicated and all appeals are exhausted," Rusty Grant, chief of police at Roswell Police Department, told People magazine on Friday.

On Thursday, Bobbi Kristina's cousin Jerod Brown asked Gordon, in a Twitter post, to remain strong as the aspiring actress fights for her life. The daughter of Bobby Brown and the late Whitney Houston was found face-down in a bathtub at her Atlanta home on Jan. 31. 

Meanwhile, the 22-year-old's condition remains unclear following conflicting statements released by the Browns and the Houstons. Bobbi Kristina’s aunt Leolah Brown said this week that her niece has "continued to make progress.” However, last month, Cissy Houston, Bobbi Kristina’s grandmother, said she wasn’t improving and there wasn’t much the family could do to help her.