It was NOT consensual, because she did NOT consent to have sex with the person whom she was ACTUALLY having sex with. SEX WITHOUT CONSENT IS RAPE, period, the end, no matter whether FORCE was involved or not, and to argue otherwise is EVIL. By YOUR definition, "date rape" doesn't count as "REAL rape" - even though the LAW says otherwise - which means that you're basically arguing on behalf of every vile scumfuck fratboy who got girls drunk at a party and had his way with them - after all, they weren't FORCED, and they "consented" to it, so by your definition, the INFORMED part of "informed consent" doesn't play into it, does it?
I'm arguing MORALS. You're arguing SEMANTICS. As such, as a former rape counselor, I don't think I can continue this conversation with you, because there's no way that I can tell you what I think of you right now, as a PERSON, without using ban-worthy language.