I feel that I knew what the difference was, but now I don't have a clue. Here an example I face?

This girl rejected my advances, after even after we kissed once, she is touchy, and wants me to touch her, and seems comfortable when I put my hands on intimate areas such as hips, while my fingers touch her bum.

She has been messaging me a lot, If I dont reply she will keep texting . Any she wants to go out after our last exam. . But main point here is I have so many texts from her. I was at a family event, and she had a drink, she called me 5 times. She will make the effort to text me, over the last 3 weeks.

So I got into a friend with benefits with a another student . This girl I like was quick to say that I dont like her. I played along and acted confused, she wanted me to dump the other girl right now. She text me the next day asking If I had got rid of the other girl.

The other day while I was in an exam with her. I was walking with another girl, I saw her looking at me. and looking away when I made eye contact. In the exam room, she went in first, I was near her and sat next to my guy friend, he told me that she looked at me all the way until I sat down, and he caught her eye she looked away, but i could still see her trying to look after this.

She then said she likes another guy, and why she likes him, and why it wont work out. I didnt bother replying, but all this has me confused. Deep down I know she likes me, she cant let go of me. She has many other guys who text her and call her, and give her that attention.But she seems to ignore them.

so how do I know? This is confusing, l, but I want to finish the job here.