I am so sorry to hear about your so-called friend. I think of my tranistion as a kind of "friendship stress test".
When I came out, the reactions were very mixed. Some were amazingly positive, some not so much. The good news was that I got to know for sure what all of my friends and family were really made of when all of my cards were down on the table. I am just glad I found out who my allies REALLY were, and with whom I was wasting my time all along. I am also glad that I never burned a single bridge, because some people who reacted badly at first came around later and are now now my biggest supporters. I think that once people got a load of the real, happy me, they "got it".
I now know upon whom I can truly count, and that is priceless.