Being falsely accused of sexual misconduct at college is not unique. It unfortunately happens all the time. It is an incredibly serious allegation. There are certain themes in cases involving false allegations. Certainly, if a relationship ends and does not end well, it can lead to false allegations. Say, the party that left the relationship and was not pleased as to how the relationship ended could have a motive to lie, to try to cause a problem for the other student, the student, say, who would be being falsely accused. Evidence that would support one's claim would be anything and everything potentially related to the relationship. Phone logs, text messages, social media posts, email communications, witness statements, people who have seen the parties in the relationship would need to be presented at that given time. Potential expert reports. It's an incredibly serious matter. The path forward is not necessarily going to be easy.
Having an experienced attorney advisor will help you best protect your rights and interests and can help you best understand and navigate the process. They should be involved as early as possible if you're falsely accused of sexual misconduct at college.