Will I Ever Get Over Her?

So I know not in sight not in mind....problem is I was best friends with this girl through out highschool and I fell for her.....she didnt feel the same because she was dating this rich oil guy who she is engaged to and probably going to marry. When I dont see her I am fine because I know she hurt me and kharma is a B*tch problem is we live in the same community and go to the same college.....it hurts so bad seeing her and having her ignore me we where almost attached to the hip at one point and now I am a ghost to her. Sometimes I go to shop out of my way in hopes of never seeing her. I dont want any try to work it out answers because I have but she always shot it down...