No it is not right, and the girl can never be 'blamed' for the other persons actions.
Every person on this earth, male or female is entirely responsible for every action they take. Another person can contribute to, or influence a decision made, but each and every person is responsible for their own decisions. Accepting this is called taking personal responsibility for your own actions.
So let me phrase your question a different way : A boy and girl have been dating for a long time. When the boy proposes, the girl says 'I just want you as a friend. I don't want to marry you'. The boy breaks off the relationship and walks away. Is it the girls fault that this boy walked away?......now most would answer 'yes' to that question. But note that this boy chose a different path to take - he did not throw acid at the girl. So breaking off with a boy does not automatically equal 'boy throwing acid in girls face'. Ie. you do not possess mind control over the boy - he chooses his own reaction to what you have said. He is responsible for his reaction. One is a contributing factor, and the other is a personal decision for which he is entirely self responsible.