Bobbi Kristina Brown's family are getting on ''each other's nerves''.

The 21-year-old daughter of the late Whitney Houston is currently in hospital fighting for her life after she was found face down in her bathtub at the end of last month and her unchanged condition has caused her relatives to come ''under a lot of stress''.

A family member said: ''I think we're all getting on each other's nerves now. Everyone's under a lot of stress. Bobby [Brown; her father] doesn't want any part of the drama; he's there for Krissi, not for us.''

Her boyfriend, Nick Gordon, has not only been banned from visiting Bobbi but the family refuses to even acknowledge him in conversations.

The insider continued: ''We don't talk about him. Bobby doesn't mention him at all, ever.

''We're trying to give positive energy around Krissi, and Nick is not positive energy.''

Bobbi's condition - whilst still remaining serious - has not changed since last week.

The relative added to People magazine: ''There hasn't been a change in the past week.

''Nothing at all. It's not like her kidneys are shutting down or anything. There hasn't been any change.''