I'm so sorry you have lost your friendship with this person. This happened to me with my best friend growing up. We stayed close friends until something came between us in our late twenties. I tried to resolve it by sending her a text telling her I was sorry things were sour between us but that I will always love her and cherish the friendship we had. I never heard back from her. She never understood my illness and I do, in fact, think she believed I was making it up. It was hard. Losing a friend is always hard. And it is sad.

I know it's a little different but just know that you have friends who love and care for you here at PC (me included)!