Nick Gordon is ''lost'' without Bobbi Kristina Brown.

The former boyfriend of the 22-year-old aspiring actress - who tragically passed away in July this year after six months in a coma - has admitted he is struggling to cope without the late star in his life.

He wrote on Twitter: ''I miss bobbi Kristina so much it hurts she was my everything in life and my best friend I love her so much and I'm lost without her

''I want her back and whiteny too I love u both so much r.i.p (sic)''

Meanwhile, Nick previously admitted he wanted to plan his own service for Bobbi after allegedly being refused permission to attend her funeral.

In a Facebook post, he wrote: ''We will have our own service remembering and honoring Krissi. Only the real family that actually was there for her will attend.''

It was previously claimed Nick sent an email to Bobbi Kristina's father Bobby Brown and aunt Pat Houston, begging to attend the service.

It allegedly read: ''I loved Krissi with all my heart and I am destroyed that she is gone and I need to say goodbye.

''I'm begging you both to please put your differences aside and allow me this chance.

''Krissi loved me very much and she would want me there.''