Whitney Houston sweater white hood jeans boots brown LAX airport ring diamond

Whitney Houston was at LAX Sunday, and she looked strikingly diva-licious in a white wrap sweater.

But what we really couldn't take our eyes off of was the bling on Whitney's ring finger ... is that her engagement ring?

Please don't tell us Whitney's back with Bobby!

See more pics of Whitney's diva-tude after the jump, and check her out in our video below.