I'm so happy you're getting re-connected with old friends. They understand what you're going through more than "worldly" people could (unless they've grown up in a cult too).
And they really haven't changed much at all in that 15 years, have they? I got together with old friends last month that I hadn't seen in that long, and it was like we were still teenagers. Just a bit wrinkly and grey, but still teenagers. Great stuff!