Wow!! So much progress on so many fronts! I'm so pleased that you and B were able to speak for s long and it felt natural and intimate to you- that's great isn't it? Did you call him back on Thursday? How did it go?
And did you hear back from the school yet? I have my fingers crossed for you, although it doesn't sound like you need any extra luck
Do you feel like the interaction with B is becoming more 'natural' now and less like you're trying to DB him? (I'm thinking in the sense of not worrying about how you come across and how it impacts him). It sounds to me as though you're much more relaxed interacting with him than a few months ago, and loads more than a year ago- great news!