The nasty custody battle between Paula Patton and Robin Thicke just took a turn for the worst.

2 weeks after Paula filed emergency court docs claiming Robin was abusing their 6-year-old son, a judge has granted her a restraining order prohibiting the singer from coming within 100 yards of his ex-wife, their son, and Paula’s mother.

But, it gets deeper…

Paula Patton also claims Robin Thicke physically abused her on multiple occasions and even threatened to “bash her f**king head in.”

Via TMZ:

Paula gets personal, saying the straw that broke the camel’s back in their marriage happened back in February 2013, when she was filming “Warcraft.” Robin and Julian came to stay with her and she says Robin was supposed to take care of the boy, but early in the morning, he began screaming in front of them that he wanted to “f***ing sleep … Who do you f***ing think you are not letting me sleep!”

Paula also stated Robin had a cocaine problem. (Tell us something we don’t know.)

She also claims Robin cheated on her while he was on tour and was bold enough to call her while he was having sex with another woman.

A source close to Robin has questions for Paula. The main one being, “If these multi-year-old allegations were true, why is she only raising them now in the midst of a custody dispute where she’s the only one violating the judge by denying Robin access to the boy?”

That’s a valid question.

According to TMZ, Robin’s attorney says the L.A. County Dept. of Children and Family Services is about to close their child abuse investigation against Robin because the charges are “unfounded.”

The lawyer also says DCFS is investigating Paula for emotional abuse.

It’s very unfortunate that it’s come to this between Paula Patton and Robin Thicke.

Your thoughts?