I cover courts, and people get slapped with criminal charges for this kind of stuff and generally end up in at least jail. (If they have a lengthier history of SA or there are extreme circumstances, they get prison.)

YES this is abuse. NO it is not her fault. I covered a trial of a guy who did similar things (and some worse) to a mentally disabled woman and he's rotting in prison for the next 10 years. In her limited understanding, she's still traumatized, which you could tell both by what she was able to express and by her sobbing at various points of testimony.

Also, depending on the circumstances, victims often don't "react" at the time, so that's not really a true criterion either for "is it abuse?"

Have your friend take this to her local DA and get the ball rolling on this creep. And see if prior court cases are online in your state to check him out.

I wish all of you peace, and good luck.

Candy

Edited to add that the guy who repeatedly assaulted the disabled woman was in a position of authority over her. It makes a difference.