I thought he liked me now what?

I have known him fro a year he is in all my classes except one, he always teases me, asks me for gum EVERYONE knows i like him and most people were convinced he likes me, during study hall he explained to the class how my mom was a Twinkies and my dad was a zebra cake that's why im a susie q (my names susie) and he changed my last name to start with a Q, and i flirt and tease right back, he steals my stuff and plays keep away with it, and my Friend hacked my facebook and sent him a message saying it was her and i liked him and not to tell btu i deleted it and at a party without me knowing she asked one of his friends if they thought hed ever date me, and they said no. so im confused! did he like me? does he like me? I've liked him since the DAY i met him! my friends always ,make totally obvious comments that i like him around him so i don't know if he may have been scared off but i REALLY like him and when i found out she asked him, i decided i didn't like him anymore but the next day he gave me this LOOK (very cute) and i immediately fell again DX! also i see him looking at me sometimes and he will joke around with me because i'm really scatterbrained and oblivious so he will say something and ill reply what and he will say what and it will be back and forth till i start cracking up and give up, my friend used to be good friends with him and they used to flirt and i hated it, but she says she doesn't like him even though i see her looking at him all the time and when i talk to him she does something funny to get his attention, and she looks at me to see my reaction and i smile but die inside, he doesn't really talk to her anymore, btu he might like her now and stopped liking me, can you give me your opinion please! p.s. hes group of Friends and mine have kind of intermingled we aren't thew most popular group who have records and do weed and wear 10 pounds of eye liner and hair gel, but everyone knows us for the most part and everyone likes us, and we are fairly popular and are a mixture of groups, i dont know if most of this matters or if yo care but HELP BEFORE I DIE AS A TEENAGER!