100 Code (2015)

S6E21 Call Me Mom

Marie feels hurt when she overhears Ray referring to Debra's mother as "mom." In response, Ray suggests to Debra that she should start calling Marie "mom" as well. When Debra tries this in front of Lois, it backfires; Lois becomes upset, believing Debra shouldn't refer to Marie as "mom" since she isn’t her actual mother.