You sound like you care for this girl? If you do, why is your post all about you? Try being supportive rather than a burden to her.
I agree with stevelivingfree. You need to accept closure of the past relationship, and if you truly want to be friends with her, stop asking her the paranoid, jealous questions. She's trying to move on, and so should you. Good luck.
chill out. It is her life and she is calling the shots. You are not really any significant part of her equation any more... So, be reasonably supportive and move on. You are a straight dude. Get going, date and watch your paranoia, OCD and the rest. Leave her to her BFs and her GFs and her own dramas. If she wants to share, she will, and she has amply signalled that she want to do it in her time and on her terms. Why wouldn't you just move on and catch up with her later as she wants to do it, provided, you still have time and interest in the matter? KD