This girl broke my heart?

she lives in europe. since i first met her i was like obsessed with her. i knew her for a year and a half. during that time i was filled with so much anxiety and depression related to talking to her. and now i found out she just got a boyfriend. the pain was unbearable when i found out. im mad at her for leading me on and im mad that i let it get this far. i deleted her from facebook and i guess she deleted/blocked me from msn. i was always anticipating this day would come it always killed me. idk what to do. please give me helpful suggestions to get over this and her. and to be happy again.