Maci Bookout's husband is voicing his scorn for the "Teen Mom" star's ex-fiance Ryan Edwards.
The episode showed Standifer decide to return to school and try for a child with Edwards.
McKinney spoke out after a fan tweeted, "Lol at Mackenzie wondering if Maci has moved on from the past and claiming Ryan left her."
"Well when you have 2 jobless adults, one of whom is 30 years old and still needs his [expletive] wiped, what do you [expect] the dinner convos to be?" McKinney responded.
"They should thank Maci for paying their 'nursing school'....but that's none of my business," he added.
Bookout and Edwards, who share 8-year-old son Bentley, ended their engagement in 2010.
Bookout and McKinney married in 2016, and share 2-year-old daughter Jayde and 21-month-old son Maverick.
Edwards and Standifer married for the second time in November.
Standifer, who shares son Hudson with her ex-partner, said in an Instagram post in January that she had started tracking her menstrual cycle in potential preparation for "Baby #3."