dont know if i want to be w/ him...

I am struggling wth what i want. im in a relationship with this one guy, for about 3 months roughly. he is wicked nice and is very loving. my best friend absolutely adores him. both of them are leaving to different schools than me this year. my best friend is in awe over this one guy who will be in the same school as i am. this guy she likes, lets call him X, is very hard to read. apparently X likes this someone else. im not sure who though, its someone random. my best friend always seems jealous of me because X "seems to like me" i guess hes always staring at me and tries to talk to me but never gives her the time of day, which i never noticed. anyways, once i found out that X likes someone other than me, i felt hurt. i had the tinest crush on him, nothing major because my best friend liked him so much, but there was always something there. whenever he texts me i always jump at the phone, vs my boyfriend where i will eventually answer. i dont have that same excitement anymore. i dont know if its because our "cupcake" phase is over but i dont know what to do. i dont know how i feel about X or my boyfriend at all. any advice?