Her actions paint a clear picture of someone who's complicit in whatever's gone on in their home.
The kid's arm gets broken, but the authorities can't conclude either of them are responsible for it. She secretly tapes him, gives it to a local TV station who selectively edits it before making it public (what in god's name was the station thinking here??), & then she refuses to talk to the NFL during their investigation.
It's sad for the children involved, but it certainly appears that he & her deserve each other.