I wish you luck in your healing. As for your questions I would go as your own pace and allow your boyfriend to go at his own pace. Just because you both have PTSD and wanting to work together seems dangerous to me because of the fact that PTSD strikes different ppl together. Maybe doing healing as a friendship would help both of you guys. Healing from Tramatic events can be taxing on you much less your boyfriend. Just remember that you are both dealing with different aspects of PTSD and doesn't appear you guys are dealing with the same issues. What does your T say and if you don't have a T, I think that ought to be high on your list to do as well as with your boyfriend needing a T.
Great questions yet I fear I might not have answered them right.
oh btw,
to PC I wish for you to find many helpful ppl and friends.
Crew