"Cameron was not just the mother of Griffin's children and their caregiver, she was also a constant support for Griffin - his personal assistant, meal planner, scheduler, stylist, publicist, party planner, nurse, nutritionist, branding expert, therapist, cheerleader, basketball and fitness consultant, and more", read the suit.
The couple broke up in July around the time Griffin started to be seen out in public with Jenner.
Brynn Cameron, the mother of Blake Griffin's kids, has filed a lawsuit against the Pistons star that claims he left her and their children for Kendall Jenner. A month before the wedding, she claims Griffin blindsided her with a prenuptial agreement.
Although it is unknown how much Brynn is looking to gain from the suit, she says Griffin, who in June signed a $173 MILLION contract, left her and her family in a dire situation.
Cameron says she and their children are now "homeless and cash-strapped" and forced to rely on her brother for support.
But Cameron filed documents of her own, also seeking joint custody but asking the judge to establish child support based on Griffin's annual salary, the Blast reported.
'Griffin cared more about the glamour of dating a Hollywood celebrity than the day-to-day responsibilities of being a father and family man, ' the lawsuit stated.
Blake Griffin's ex in lawsuit: He had 'toxic' relationship with Clippers teammates
After she declined, she alleged he called off the wedding a week before and 'immediately embarked on a high-profile affair with [Kendall]'.
In her suit, Cameron handed over love notes signed by "Blakey" to her, thanking her for her support and "all of the sacrifices" she has made for him and their children.
She claims that he skipped their daughter's first birthday in September and instead jetted to New York City to be with the young model, all of which she learned through tabloid reports.
Cameron stings him again, adding that he "knows very well what breaching promises is all about", citing their failed romance.
Griffin and Cameron were together for about 8 years.
Reports emerged in August previous year that Kendall was dating the basketballer, after they were spotted at dinner and Kendall was then photographed at many a game cheering on her lad.