Earlier this week Bobbi Kristina Brown's alleged husband Nick Gordon went on a nasty Twitter rant trashing the entire Houston family [click here if you missed that].
Now we know why...
Insiders tell TMZ the whole thing started after Nick showed up to a black-tie Houston family gathering disrespectfully dressed down in a hoodie and sneakers "looking like a thug."
Apparently that was the last straw for Whitney Houston's nephew Gary who felt Nick had disrespected the family one too many times, so he beat Nick's ass outside the event hall after the party was over.
