How much does he like me?..wil it last?

so yea ths guy and i always had alil thing for each other in school but never went anywhere..first we would just flirt but then we went our own seperate ways n stopped talking then we started again n this started texting...then we stopped again for like no reason...then at the end of the year right before prom i told him i has a small crush on him..n he replied i used to like u..jerk!...but neways we kept texting than started talkin on the phone then he attempted asking me to prom but i said nooo...then at prom he kept telling me how pretty i looked n kept talking to me n he asked me to dance we danced a slow song n then we juked later..then after prom he invited to an after party n i didnt go...then he wanted to chill the next day n we didnt then we finally chilled the day before yesterday n had our first kiss...then he didnt text me or call me after a whole day..wen he always textes me..was i a bad kiss or something or is that a sign he isnt interested...like he is the biggest flirt but i mean so am i but im a girl so its different..n sometimes we have great convos but then we have like nothing to say...its like wen im around him im speechless...like i wana say stuff but nothing seems important enough to say...but we have good laughs n stuff ...o yea n we hungout he said this gurl was cute like why would he say that in front of me...wat u think?