EXCLUSIVE
Joseline Hernandez was NOT on drugs during that ugly brawl on the set of "Love & Hip Hop: Atlanta"... so says her BF Stevie J -- who tells TMZ he's gonna sue the liars who said she was high.
Stevie claims his co-star, Althea Eaton, made up the story about Joseline smoking crack cocaine before attacking her last month at the reunion show. Althea is suing Joseline for assaulting her.
Stevie tells TMZ ... the suit is BS because Althea and her husband, Benzino started the fight by talking crap the first place. He claims Althea's lawsuit is a smokescreen ... to hide the fact Benzino slugged Joseline during the tussle.
Stevie says he and Joseline have lawyered up .. and plan to counter-sue because "no grown man should hit a woman."
We called Benzino who told us, "It's clear that him and his whore jumped off the couch and attacked us and whatever happened from there was merely self-defense."
