If your kid is going to come out to you, it should happen in his or her own time, and in his or her own way. Then say what you would want to hear, 'I love you.' Not 'I love you anyway,' but 'I love you.'
Oddly Normal is a particularly satisfying book for me because I'm an educator. I know our educational system from the outside, as a parent, and the inside, as a school social worker. It was gratifying to read about its negotiation from John Schwartz's point of view.