Cummings is engaged to her partner Miles Skinner. She first announced the news of her engagement in September 2018.
Skinner surprised the actress on her 36th birthday by proposing to her. Cumming's happiness knew no bounds, but she had not anticipated how stressful and costly planning a wedding could be.
The 'Emotional Ninja' writer shared photos of wedding dress shopping on August 2019. But by February 2020, the engagement had been called off due to the aforementioned complications.