Last night we were hanging out, she spent the weekend at my place, and we had a really nice time. She was being very affectionate. Then she had a few drinks, and she is a bit annoying when she is drunk but it wasn't bad.
Then out of nowhere she brings up how my bed when we first hooked up 6 months ago, smelled like another girl. I admitted to her that I had slept with someone else like 2-3 weeks before we met. Just a casual fling. And that might have been it. She got upset and asked about her. I told her her name, and she asked if she is my friend on ista, which she is but I haven't talked to her since I met her. Which she is also friends with people she has fucked/dated on social media. And continues to talk to them despite my issue with it.
She got even more upset, because I hadn't told her about this woman before. Stating when I met her I told her it had been a month or so since I slept with someone. Which I admitted to fibbing about just a bit because I didn't want her to think I was a whore. And I never kept the info from her intentionally, she had previously asked me the last girl I dated, and I left that girl out because we didn't actually date. We just slept together a few times. She seemed to view it as a lie. But I don't think I have to tell her about every person I slept with before I even met her. Especially since a week or so ago she told me how she stayed up late talking with some guy she used to fuck that lives in the Netherlands, and has several friends that she has fucked. Which I have had issues with. How do I handle this situation? Am I wrong or is she?