Bhad Bhabie says she's a single mother and she's never getting back with her baby daddy Le Vaughn ... how 'bout dat?

Bhad Babie and on-off partner Le Vaughn have split for good amid her cancer battle and shock claims about Alabama Barker.

Bhad Bhabie and Le Vaughn had been in the relationship for years and they also share a daughter named Kali Love ...