The 'Top Gear' presenter spiralled into depression after his children were diagnosed with autism and he struggled to process what that meant for their family.
McGuinness said the assault happened at a house party and she worried it was her fault for drinking too much.
Famous parents have posted about their children heading back into the classroom on Monday.
The 32-year-old mother-of-three has not seen her mother for months as she is shielding due to breast cancer.
The 'Top Gear' presenter is back at work driving for the show one day after being involved in a crash.
The couple have said staying at home together as a couple all the time has stopped them bickering.
The 'Top Gear' star's children, two of who have been diagnosed as autistic, find the upheaval of Christmas overwhelming.
It comes after her husband Paddy said the family were approached by a man who took issue with them parking in a reserved space as they didn't "look disabled".
The model and wife of TV host Paddy McGuinness opted a picture of herself wearing a hospital gown.
Paddy McGuinness, who already has three-year-old twins Leo and Penelope, has welcomed a baby girl with wife Christine. The proud parents took to Twitter to announce the happy news while sharing the baby’s super sweet name and taking the opportunity to thank the doctors and nurses in the hospital’s neonatal intensive care unit.