Teenage relationships pointless??????? HELP....damn I'm feel shallow?

Oh no after I'm going to sound like some stuck high school girl...I'm not I'm just confused and i know i should not be wasting my time ,but i cant help it. There is this guy in my cl who was kinda not popular last year( popularity we say it does not exist but u know it does) and he failed and now he is. He lives by me so we walk to school together and became tight friends like we talk a lot in cl and things like that. Then developed some kind of feelings like a damn crush on this guy and i kept it secret for a while and then on mms he kept asking "who do you like" some after like hours we established that it was him and he told me that he liked me.............normal story right..NAAT he has a girlfriend who is very popular but nobody likes her ,she ia mean and my 6 year old bro is taller than her. SO he said i like you both ok i got over it then yesterday there was a huge party and i went with my friends and he was there with his gf but the fact that they were togethere did not bother me ..no jealousy but later when she left and everyone was leaving he came up to me and was like hey are you guys leaving so i was yes and he goes can i have a hug i was surprized i was like um no and he seemed sad and everyone was saying jeez stop it kat and then carlyn me friend pushed me towards him and we hugged. LIke the hug hug and then he kept saying that i looked so hot last night and stuff. Everyone is awww this is soo cute and they wonder why im being kinda mean or at leat not taking him seriously because if i do i will belive him and then he will break my heart. My friend says that he doesnt like his girl friend that he just likes the idea of her like just for the popularityand that he likes me...damn i shallow for asking this but should i just ignore him WHAT DO I DO????