Im so sad...? I like him, he likes her????

Okay, so there is a boy i like named jamie who is dating my "friend" ALi. The reason FRIEND is in quotations is because she is being a brat. She is a frined among a groupo of friends, and she dated Him then broke up with himk. He started flirting with me.I flirted back (OVER FACEBOOK) SO (oops caps) she saw this and took him back, we ALL Liked him so she wanted to be a diamond out of all of us rubies. She wanted to be special. She took him. Now this part is stupid, they got "Married" over the weekend. We are in SIXTH GRADE! We're 14! I thought we got past this whole fake marriage thing in KINDERGARTEN!!!!! So now she gives me the eyes even if i look at him. Me and him are like best friends though! nANyway, i want him, to like me. Oh yeah, i forgot, his sister was my friend, and now i hate her. She got mad at me b-cuz she cheated off my paper and i confronted ehr about it. And he is REALLY protective about his sister. But i dont thinks thsats too much of a problem.And Ali, Is a real brat. She can make anybody mad. plz help me