Hi,
Sorry you are stuck in the state of loneliness. You would find that this experience is not unique to you and most of us experience this at some point in life. Having said that it doesnt make your experience any less painful than others. I dont think I am qualified in giving advice cos sometimes I too feel the way you feel.

Have you heard of pema chodron? She described 6 kinds of loneliness….I think its worth reading. Meditation is also good too. When our mind drifts one thing we can trick our mind is to stay at present, observe your surrounding, what colour is the sky (blue obviously except if you live in the UK its mostly grey :D) and its ok too when your mind drifts away to think about the past you just have to keep catching it and come back to present. You will also find that when you think about your ex some other thoughts intervene like – what should i have for lunch….:D

Its sad when relationship fails, I recently lost a friend who I thought would stay in my life for a long time but we didnt get past one season! Its sad but at the same time if you love the person, if they decide to move on without you, you need to let them go. That doesnt mean you dont love them or they dont love you, we just have the future without each other and really thats all that is.

Face your fear of loneliness, be a warrior….

I am still trying myself – I got good and bad days….today I want to make it a good day 🙂

Peace & Love

Peddie