Hi, and congratulations for taking a big step.  I'm glad it went so well, your girlfriend and friend are gems beyond price.  Give them a hug from all of us, and I mean that literally. 

  It's good to hear a coming out story like yours.
As for your parents, maybe they should read this book that is out, about this bloke called Jesus and his story telling.  He had a really good one about this bloke that got mugged, and was only helped by a Samaritan, of all people.  Otherwise known as, "scum of the earth."   They might find it a bit instructive. 
You might remind them that this Jesus fellow came to a bad end at the hands of the so-called "good people" as well.
Karen.