Does he like me or my friend?

first of all I have to say sorry this is going to be very long! so I'll try and sum it up as good as I can anyway let's get started. I have this major crush on this guy and apparently its very obvious he likes me back( its obvious to people except for and 1out if two of my besties and me) and for a while I thought he really did like me back we ALWAYS flirt with each other, he's waay nicer too me than last year, he tends to look at me when I'm not looking then when I do look he looks away as if he never was looking in the first place and heaps more that I'm kit bothered to type. I as abloutley certain he liked me exspecially since one of my firends said that whenshe was hanging out with her he was really friendly and nice but when they walked over to me his personality changed completely he went to nice to nervous and trying to act cool. anyway as I as sati g before I was certain h liked me until he started acting like he was bestfriends with by bestie (they were just mucking around) and he was acting like the have been friend forever and they were harmlesly flirting and stuff it made me really jealous. then when we where in cl he was looking at her when he normally looks at me. I told my friend about it and sh said that he probably was looking at me but when I looked at him he looked at her a that I didnt know that he was looking at me but I totally disagree. its happened since Wednesday so what d I do??? does he likens or her?? btw I'm 13 and the inky reason why my bestie was flirtig with him was becau that she doesn't know I like hinits wierd I always tell he who I like but wveyrtime I get the nerve to tell her I back down at the last minute oh yeah I justvremebered apparentlyhe looks at me with this look that he doesn't look at with anyother girl and also whenever we use to brush past eachother he never use to say ewww or anything but he Neva use to do to do that with my bestie until the othrday who does he like me or her????