What would you tell a man who walks home at night alone through a shady neighbourhood and got mugged with any frequency (to the point he expects he will be mugged again walking home through the same neighbourhood)?
Of course the muggers are 100% responsible for their actions. The man wasn't 'asking to get mugged', and has the right to walk down through that neighbourhood and expect a level of safety. But still, the appropriate suggestion is to recommend a safer behaviour.
Applying the analogy to a woman's sexual assault scenario, you would have to look at the various pieces, and how they translate to our model. Was she dressing or behaving promiscuously? Is she going out and partying late at night? Yes, it is her right to dress and behave how she likes, and she should be able to do so safely, but this isn't the world we live in. These actions are the equivalent of walking through the unsafe neighbourhood alone at night in our above model.
The goal for society shouldn't be to regulate the woman's behaviour until she avoids all potential dangers. No, it should be to regulate the behaviour of the assaulter - by holding him accountable, and punishing him as necessary. Still, until society changes, it would be prudent for the women to make safer decisions.
This is no way is meant to apply directly to the OP's situation. The man made a move - aggressively - she refused, and he assaulted her. I don't know how her behaviour could have changed this. (Allegedly. No need for any Internet justice here.)This is just meant to portray a counter-example. Responses like 'she was asking to be raped/assaulted' are unacceptable IMH. A woman could be walking down the street naked, and if she were raped it would be 100% the rapists fault. Sure it might not be wise for the woman, but the rapist must be held accountable.