((((HUGS)))) I'm so sorry you went through that. I'm sure it was horrifying. While it's impossible to know if what happened to you could be considered rape, it is possible you were taken advantage of. When someone is in blackout, they appear to be drunk, but still somewhat in control. It is also possible that someone slipped something into your drink if you only had two glasses of wine but have no recollection of what happened to you.
In any case, I hope this will be a wake up call for you. Alcohol is not your friend. While it may make you feel more social, it can also lead to things such as what happened to you. Maybe you should consider quitting drinking for good. You will receive a lot of support here.