Whitney Houston's daughter is engaged again.

Bobbi Kristina Brown - whose father is singer Bobby Brown - is set to tie the knot with her boyfriend Nick Gordon, who the late star informally adopted when he was 12 and referred to as her ''son'' until her death in February 2012.

The 20-year-old reality TV star, who called off her previous engagement to Nick in November 2012, announced the news on her Facebook page on Wednesday (10.07.13), writing: ''Yes, me and Nick are engaged. I'm tired of hearing people say, 'Eww you're engaged to your brother' or 'If Whitney was still alive, would we be together or would she approve of this?'

''Let me clear up something, we aren't even real brother and sister, nor is he my adoptive brother. My mom never adopted him. In fact, mommy was the one who even said that she knew that we were going to start dating.

''My mom knows me better than any of you. A lot of y'all are saying that y'all are only saying this all out of love. Which is bull because if that was so, all you would want is for me to be happy.''

''People need to seriously stop judging my relationship. Pretty sure it's my own decision who I want to be with. Yes, my relationship may not be perfect. We will have rough patches, just like every other relationship. And we have had our rough patches. You may or may not agree with my relationship. You may or may not respect it. Judge me, go ahead. Your opinions are yours and mine are mine. It is my life and not yours. The decisions I make have nothing to do with you. Goodnight.''

Bobbi first sparked rumours she is set to marry Nick after she referred to him as her ''gorgeous fiance'' in an Instagram picture earlier this month.