If love is forever why does it end?

I feel regret. I don't know if it is anything I could have done; maybe. I'm off drugs, alcohol, cigarettes. I have changed. I realize in my past I was crazy. I regret it now. Now that I am free of my churches I feel the pain of my feet; regret. The pains of my past are becoming illuminated in the absence of my addictions. My friends and my loves are all but gone. Some friends and some loves, so clouded by insanity and abuse were never truly what I had thought they were. They are over now. I must let them go. If love is forever why does it end?