If you can't stop asking, you are going to kill your relationship. It's none of your business. She says she didn't enjoy it and what really matters in life is today, not yesterday. Don't be a fool. Don't let the terrible experience you've both had ruin what could be a wonderful life together.
Life is full of terrible things.
If you can't get over it, you'll give power to the rapists, and destroy your own power. She's been through enough trauma having a sexual harassment lawsuit and losing it. She's suffered enough. She's not your psychiatrist and you're not hers. If you're in therapy, keep your problems there.