Flavor Flav’s girlfriend of eight years, Elizabeth Trujillo, 39, tells RumorFix exclusively that the brutal assault she endured on Wednesday morning stemmed from an argument over her fiance’s infidelity.

Trujillo, who Flav allegedly beat up so badly she can’t walk, reveals to RumorFix that she and her rap star lover had been going through a rough patch but after constant begging on Flav’s end agreed to give him another chance if he complied to a set of rules: Showing respect to his future wife, and no cheating!

But the troubled singer, who Trujillo says had been cheating for months via “phone affairs” and hooking up with other women,  broke every one of the rules one day after his fiancee gave them to him. Trujillo tells RumorFix of Flav, who was arrested Wednesday morning for domestic assault, ”I looked at his phone and then a girl texts him and says ‘I really had a great time with you tonight. Did you get home safe?’ And I thought to myself  ’woah not again!’”

Liz continues, “He wasn’t complying with the rules although he said he promised he would. And one or two days later he’s back to the same old sh*t.”

Well, Liz won’t have to worry about Flavor Flav’s wicked cheating ways any longer, because the 39-year-old mother tells RumorFix she’s filing a restraining order against the sucker.