unless she went to the hospital and the inspected her for bodily fluids and other rape related injuries - your fine. That awful though- same shit happened to a friend of mine in college - he started dating a physco - he relized she was crazy and broke up with her. A month later she went to the police stating on the night of the break up - she was rapped by her x. It really f-ed up his familiy life, credibility, focus. It took about a year before the court proceedings ended. The charges where dropped based on the fact that there was never any post rape inspection.
Also, he is pursued a civil suit for defimation of character and one the law suit for an undisclosed amount.
Anyways, it cost him a lot of money in lawyer fee - plus a lot of gray hair. I truely feel sorry bro - thats awful.