Article continues below advertisementAlthough 1000-Lb. Sisters stars Amy Slaton and Tammy Slaton may have dropped the weight they believed was holding them back, their relationship is more turbulent than ever. "It feels like we're drifting apart," Tammy, 39, said about her sister in a teaser shared by a news outlet on Tuesday, December 2. "She used to be my best friend."Article continues below advertisementThe Slaton Sisters Are FeudingSource: TLCTammy Slaton was accused of calling Amy Slaton a 'deadbeat mom.