Here’s how it all started on Twitter:

@mslady57: “And she can’t help it that her husband is a multimillionaire and yours is a bum! #bvf @towandabraxton # jealous!”

Towanda has two children with Andre Carter, but the two are currently legally separated (not divorced, they still live together). Rumors now suggest that the songstress is dating former NFL superstar Kordell Stewart (ex-hubby of “Real Housewives of Atlanta” starler Porsha Williams).

Anyway, Braxton promptly hit back with this comment:

@towandabraxton: @mslady57 check the web boo! He also owes 3.3 million to the irs….guess I’m jealous of that too huh?”

Woah – Braxton just threw her sister Tamar’s husband (Vincent Herbert) under the bus! Fellow tweeters quickly responded:

@mslady57: “@towandabraxton yep u are! Still throwin her under the bus grow up and love on ur sister.”

@hellokitty2035: “this was foul towanda, u let this woman bring u to such a dark place, an apology is needed.”

@PaintMeLeopard: “Towanda you ah certified hater fasho! Can YOU make 3 mill and owe it first tuh!”

Now Towanda Tyrone Braxton knows she’s WRONG for throwing that kind of shade at her sister! Jesus take the wheel!!!