And now fears for the 19-year-old and concerns over the suitability of Nick as her boyfriend, will be heightened after a picture of him brandishing a gun has emerged.
In the snap Gordon,22 is seen holding the firearm up to his face while driving a car using the other hand.
Tough guy: Bobbi Kristina's boyfriend Nick Gordon has been snapped carrying what looks like a gun while in a car
It is not clear from the image if the fun is real, or if it is a replica, but the photo certainly has a shock factor regardless.
The snap which emerged on Twitter has since been taken down and Bobbi's account has become private.
A spokesperson for Bobbi refused to comment on the picture but told MailOnline that 'Nick is not her boyfriend.'
Action packed: Bobbi Kristina and Nick have been enjoying a holiday in Hawaii
On hand to help: Nick was seen carrying his girlfriend to a boat while the pair shot scenes for their new reality documentary
The pair have been busy shooting beach scenes for the show ahead of the October 17 premiere of docu-series The Houstons: On Our Own.
Bobbi and Nick lived together as siblings for more than a decade before Whitney's death, with 22-year-old Nick considered to be the superstar's unofficial adopted son.
She took him into her home when he was just 12 after his father went to prison and his mother was unable to take care of him.
Carrying on: The pair have found comfort in the other in the wake of Whitney Houston's death
Thrilled with their holiday, Bobbi tweeted on her return: 'Home from Hawaii!! The trip was great! :) so beautiful, cleansing, anointing & incredibly spiritual. Mom I feel you all over! IloveuALWAYS!'
As well as Bobbi, the Lifetime show will feature Whitney's sister-in-law and manager Pat Houston, Pat's daughter Rayah, Whitney's brother Gary, and mother, Grammy Award-winning singer Cissy.
Soaking up the sunshine: The 19-year-old has been enjoying a holiday with Nick and showed off her shape in a pretty blue bikini
By the age of 30, Bobbi will have inherited everything that belonged to her legendary mother.
Not her boyfriend? Despite claims from her publicist that the pair are not a couple Kristina has posted a series of snaps of herself kissing Nick
Source: dailymail.co.uk