Advice??

I Just dont know what to do anymore , Im really in love with this boy , He took my virginity and im just so attached to him , but he doesnt feel the same way about me . When i cry and stuff over him he say im doing too much and some days when he dont reply i cry and blow his phone up until he text me . my friends tell me to move on but no one could feel my pain . i just want him and wish he felt the same way about me . I no longer eat , i throw up , this is making me sick to my stomach.