Hey, I understand how you feel, I was with my boyfriend for 3 1/2 years, I thought he was my other half. When we broke up, I went through a huge crisis which led me to mess up my studies in college and drop out. No matter what I did, I could not get him out of my mind. But I am spiritually believer, whenever you get into a relationship with someone the bible say you become one, its called soul ties. Until you break your soul tie in front of god you will always be connected to him. Try Google and type soul ties.