Not much specific information to go on here.
This is one way to approach this ...
Look at WHY this attack is the
hero's problem or the hero's responsibility or the hero's fault.
This is why the heroine comes to him instead of to the police,
or a lawyer,
or the local newspaper,
or the villain's bad-tempered wife,
or her cousin at the FBI,
or her knitting circle to grouse about.
If our gal is being stalked by the school librarian because the hero forgot to return 'Cry the Beloved Country' to the shelves in 1997,
then the heroine marches up to that scofflaw hero and says,
"Mr Needsum just tried to run me down with his Honda Civic. He was yelling 'Cry the Beloved Country' out the window. This has to stop. It's your fault. Fix it."
If this mess wasn't the hero's fault, our independent heroine wouldn't go to him for help.
She'd fix it herself or go to the police etc., herself.
So you locate what makes this the hero's problem.
Then you have your heroine walk in with
-- description of problem.
-- her extreme annoyance.
-- why it is the hero's fault.
That's the first thing she says to him.
She points out this little fault. Independent heroines don't mind pointing out the hero's little faults.