Lauryn Goodman has hit out at Kyle Walker after he left their son out of a post about his children.
The Manchester City, 30, footballer showed off his personalised boots that had the names and dates of birth of his three children with partner Annie Kilner listed on them.
His decision was slammed by his followers and Kyle turned off the comments on his post.
And Lauryn said Kyle was "abusing" their 13-month-old son Kairo by not including him.
She took to her Instagram account to re-post the photo, which a fan had edited to add her baby boy's name at the bottom of the list.
"Thank you guys for this pic!" Lauryn captioned it. "Refuse to be Abused @kairowalker .
"In a time where mental health has been at the forefront showing the implications and damages it can cause. Your 'father's' latest post has absolutely shocked not only me, but everyone to the core.
"Things posted to the internet are there forever and Kairo has been abused by you & your partner for far too long.
"He is 1 years old. He is an INNOCENT baby. No matter anyone's opinion on me. Kairo has done NOTHING & he does not deserve any of this let alone publicly.
"I speak for the many women that are silenced. Believe me when I say, there are SO many more women in my situation.
"More than you could ever imagine and a LOT of women have dm’d me finding comfort in me not being silenced. They praise me for standing my own ground and not hiding Kairo.
"Why should he be hidden? To give you a quiet life? Never. There is keeping him private for his own protection (which is needed after the lies & stories that have been sold from your partner) and then there is ignoring his existence.
"The latter will never happen. He is not going anywhere. Get used to it."
She also spoke directly to Kairo, adding: "You chose me to be your mum. To fight your corner. I've got you son. I will NEVER let you down."
Lauryn added: "Ps @pumafootball called they decided to have some morals & correct your boots... (they should morally remove those current boots.)
"Feel free to share this."
The Mirror has contacted a rep for Kyle Walker and is awaiting comment.
Lauryn and Kyle enjoyed a brief romance following his split from partner of 10 years, Annie.
The couple, who are parents to Roman, nine, Riaan, five, and three-year-old Reign, have since got back together and are now engaged.
Lauryn found out she was pregnant five months in during a routine kidney scan.
