There is a possibility that she may have been "drunker" than you think and she didn't really know what she was doing. For this reason, I NEVER do anything if a girl and I have been drinking. As long as everything happened that you said happened (i.e., it was consensual) I hope everything works out and it blows over.
I had a kind of similar situation last year. I went on a date with a girl; at the end of the date her and I made out and got a little touchy feely (i.e., feeling each other up). The whole make out session was just a very "heat of the moment" encounter; I never really saw myself pursuing anything with the girl as she was trashy as f*** and immature (i.e., straight up made fun of some guy with a intellectual disability to me at the place we ate). Afterwards her and I talked a little bit but I eventually stopped talking to her (i.e., didn't respond to her texts) because I didn't see anything happening between us nor did I really want anything to happen between us with her sh*t personality. A few months later she started a rumor about me that I "grabbed her ***" repeatedly on this said date which was completely false. When I comfronted her on it she told me that she wanted to "expose me" to the world. Because of her rumor, I ended up losing a lot of respect from a few people that I was friends with/knew. This same girl always "Super Likes" me on Tinder still (I always swipe left), liked my posts on social media (mostly pictures of myself) until I finally blocked her, and even contacted me about buying my old car. All of these go to show; if I really did do what she claimed, would she still be going out of her way to contact me like that? It seemed like she was mad that I wouldn't date her and this was her way of "getting back" at me.