what should I do ( dealing with a guy and a friend)

Ok so there is this guy who came to my school in the ninth I was in the sixth a couple months later I started to like him skip to the second year I was going to ask him out but a new student came a she became my friend she's a grade above me. they started dating I had to claim I didn't like him but I told her I did a little bit. they were on and off for like 6 months then they just broke up and stayed friends. the next year ( this school year) 2 more girls came there 5 girls in the class and he's the only boy. ( me- Jazmyn, friend - Jessica, pretty girl- Drea, funny girl- Tiona, and there a girl I will not mention) so the guy and Jessica are just friends now but I still feel like she still like him. Drea and Jessica really hit it off and now she doesn't talk to me anymore we still do things together but it's like the friendship isn't there anymore. But I made another friend Tiona. anyway the whole class thought dress and the guy would get together but she doesn't like him but recently he's been looking at me differently and I don't know if he like me. it's confusing and he said I'm like a sister to him. he's cute but I call him ugly. I'm in the 8th he's in the 11th. what should I do?