I am a 15yr grl..n want ur help for my relatnshp?

i am a 15yr grl n gng arnd wit a guy who is 19yr n is doing engineering from DCE .. we both had good relation but nw i dnt feel comfortable with him coz of some financial mattrz n our both contrasting nature..but he says me tht he ll change n nw he is selectd in india under 19 cricket team..but as i do hv consultd my astrologer she allso says me to leave him n said tht i ll get a bttr 1 than him..n as ma frndz say tht m vry beautiful n ma whole school students are against me for evn jst frndshp,n he contrasts ma looks..hez not good...n ma family also wants me to leave him...but he is naot at all ready to leave me at any cost....plz help..plz...