You really are not listening, are you? It does not matter. As long as they can prove that he had sex with you when you were before the age of consent, it does not matter if he marries you later on down the road or not. the crime still occured, and the state can choose to file or not choose to file. There is little that can be done about it.
The fact that your parents allowed it means nothing. Just because a parent says you can have sex underage does not make it OK under the law, else it would be legal for your parent to run an underage brothel.