Is it love or not? very unique story

Very interesting story. Please read
There is this girl who everyone (people who aren't straight) in my class has a crush on (I am in an all girl's school). I am straight. No one knows if she is straight or not. She always sat beside me in exams. She is one year junior. I saw her in my dream twice in a row (nothing bad). In the exams I often caught her staring at me. Yesterday was a party. She wore a beautiful suit. I was impressed, so I went to talk with her. She told me how pretty I am and that she saw me during the exams. Exact words: "you are so pretty I remember you sat beside me during the exams". She told me I am pretty many times at different times. I took a picture with her (she didn't mind). She even asked for my Instagram identification. I gave it to her. Later I gave her a chocolate (she didn't think it was creepy, since later she sent me a friend request). I accepted the request and followed her back. I saw that no one else from my class (for that matter, no one whom I know) follows her or is followed by her. She even liked the picture I posted of her and me (It was the last of the 10 pictures so she had to swipe till the end) (and believe me, so many people objected. They were like "woww you took a picture with ________!!!!" And a friend actually got angry with me). She didn't take a picture with me with her phone because she forgot to bring it. And I don't know her properly. Oh yes, I saw her in my dream last night (nothing bad). The party was yesterday. Since then I am constantly thinking about her. I forgot about eating, sleeping etc. But I am not attracted to her. I just want her to be my girlfriend. I really wish she likes me.
What do you guys think? Does she like me? Do I like her? I don't know what's wrong with me.