(posted in the wrong section, sorry for that)
Hi all,
So for about 4 months I've been getting pretty close with a co-worker of mine. She's 21 years old (I'm 23), pretty cute, very spontanious en has a nice booty

Although she's cute I normally date girls who are a little hotter but we just have this amazing chemistry which made me like her a lot.
From the very beginning I met her I was gaming her and made sure there never would be any sort of friendship kind of relationship between us. She was really chasing me. When we are together we are always very flirty, have a lot of fun together, and a lot of kino. This kino also takes place in front of our other co-workers who sometimes then make comments asking if we are in a relationship or if we've had sex and stuff like that. She doesn't mind those comments. We didn't actually have sex, we only kissed a couple of times on a certain evening like 2 months ago.
At the point we were getting so close I was really thinking we were heading to a relationship, ofcourse I wanted sex first but it seemed like that was just a matter of (short) time.
Then last weekend we were having drinks with some people from work, everyone got pretty drunk and at the end when we were alone I wanted to kiss her again so I went for it. She politely declined, which I found strange. Then she told me she really really liked me, I was the best co-worker ever but she just saw us as friends. I was pretty drunk, so next day we talked on SPAM and I pretended I didn't remember the way she responded. She told me the same again.
The next day at work we worked together again and I actually was in an extremely good mood, being very happy, almost like I had the best weekend of my life. Ofcourse I was dissapointed in her response the da earlier but I really couldn't believe she doesn't like me more than friends. That day I was nice to her as a friend but didn't gave her any kino or flirtations To my big suprise she was in the worst mood I have ever seen her, especially to me. When we went with 2 other co-workers in the car, we were together on the backseat and she almost didn't say a word to anyone, only starring depressed out of the car window while she is very energetic and spontaneous normally. She was acting like I told HER we could only be friends.
Then by coincidence we were nearby her parents, so me, her and the other co-workers went there after work to drink a beer. I've never met them before and they totally LOVED me. Then she became a little flirty again over there, and somewhat joked to her mother and brothers I'm in love with her. They responded like: 'Well, he's approved!', even her brothers which I just met half an hour before. I saw she liked it. After we left she was still in a bad mood but was looking for attention again. Like asking why I didn't tell her today that she looked great, when we went in the elevator she was joking about having sex in it and stuff like that.
So what's your vision about this guys? I really like her but I just don't know what she wants exactly. Like I really can't imagine she doesn't like me, everyone who would see us together wouldn't believe that. But at the other end, why would she tell me twice she just see's me as a friend and reject a kiss while we were drunk?
I really could use some advice on this.
Thanks in advance