I need help. I can't sleep, eat or concentrate on anything else. I love her so much. How can I get o

I loved the girl she just stopped me to call her or any kind of communication since past 3 month but, I still want to be with her. I tried Cig & Drinks to forget her even did everything to forget her. But still she is always in my mind.We were spending every moment we could together, we loved each other incredibly, I never thought i'd be so lucky. She'd tell me so much how she'd always love me. We spent every moment together, if we werent seeing each other, we certainly was on the phone to each other. It was a very intimate relationship and I loved every second of it, I thought she did too...