Typically, people who are accused of this act only have 2 possible defenses. 1) Say it was consensual, or 2) deny any sexual act occurred at all. The problem with the second option is that if you say "nothing happened", but we find out that something DID happen, then we have to assume it was rape.
Theoretically, if the assault happened and the rape kit was administered, they would be able to find evidence of the attack. So it is interesting to me that Conley's friends have gone on record to say "no sexual contact happened, she was just made she got kicked out." If they find evidence, then it was surely a rape. The problem is that rape kits go "unchecked" in America all the time. There are literally thousands and thousands of rape kits that have never even been processed. Sounds super crazy but its totally true. So we might never find out what happened.
Bottom line, if she was not assaulted, I find it hard to believe she would put herself through a rape kit procedure. They are gruesome. I guess we will have to wait and see what happens. However, there is always so much more to these stories than what we see, or what can even be proven.