Is AUTHOR wrong in the post ? POST : CONTEXT:  I am a male, most people at the party are male. She and me had a little bit of chemistry before the party but we lost touch until my friends party.

Alright so this has been chewing me up lately and I need advice.

So I went to my friends bday party and we’ll call him Harold so I went to the party and everything seems to be fine, I was chilling with her and Harold and other friends having a genuinely good time chilling and talking about everything. So Harold goes upstairs and so does most people besides me and her and we start talking and It was pretty cool, so she starts holding my hand and that was like okey dokey welp this is my life now.

So she said to everyone that we were dating or whatever and I agreed to it do it was all pretty nice and chill, she said to one of Harold’s friends that she was single. So I thought I was in the clear or whatever, so we just held hands until she had to go. She kissed me goodbye and left.

The next day in the morning I text her since we exchanged numbers and she acts confused when I wanted to call her and talk or whatevs, so I don’t think much of it and just shrug and wait for her to call me. So about an hour later she texted me saying that she took something before she went to the party and didn’t remember much, and that she was in a relationship...

She didn’t remember anything of the party. 
I didn’t tell her about it because I don’t know how to access the situation. 

TL;DR
She took something before She went to my friends party, was high af and hooked up with me. She Kissed me. Texted me she was high af at the party and didn’t remember jack shit and was in a relationship. I haven’t told her yet about what happened. 

AITA?