11/29/2012 08:37 am ET Updated Nov 29, 2012

'The Houstons: On Our Own': Are Nick And Bobbi Kristina No Longer A Couple? (VIDEO)

So maybe Bobbi Kristina and her "adopted" brother Nick Gordon aren't a couple after all? Their unusual relationship has been at the heart of much of the drama on "The Houstons: On Our Own," with many members of the family not approving of their romantic involvement, or Nick's influence on Whitney Houston's daughter.

But this week, it looked like Bobbi Kristina and her fiance may not be on the same page about their relationship after all. Now, when talking about it, Nick started saying that it was more about drawing closer after the death of their mother.

"That was about it," he said. When asked about marriage talk and all those things, Nick said, "No. Me and Krissy are brother and sister."

But does Bobbi Kristina know this? Us Weekly reports some crytpic Tweets between the two could suggest a break-up, while a producer for the show suggests -- of course -- that fans watch the show to see what happens.

Find out on "The Houstons: On Our Own," Wednesdays at 9 p.m. ET on Lifetime.

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