Hello keef_is_good,
Take all the time you need to cure yourself. I know what you are living because last year I was in a one-itis with a girl I met two years ago. One year ago, we decided to stop communicating. During this time, I began to realized all the mistakes I made and the bad attitudes I was having like negativity and depression kind of state.
Last week, the girl called me after one year and she wanted to hang out so we walked and talked for a few hours and when she left I was not feeling bad because I realized that my one-itis was over. I was not having any feeling for her anymore.
I just want to tell you that each person is different. It took me about two years to get rid of my one-itis. Another guy will maybe take three or six months and another one three years. The best thing to do I think is to meet more women, go out with your male friends, do some sports and have fun without girls. The busier you are the less time you will have to think about her.
Good luck in your journey and don't forget; Meet more women
