Coming from a secondary survivors point of view, please don't feel guilty about talking to your husband and friend about what have already shared with them. Trust me, it hurts me a lot more when I can see my partner/friend shutting down and suffering on her own and pushing me away rather than opening up to me about what is troubling her.
It is not your fault what you went through and I hope that you find all of the support that you need, please don't cut out those whose support you have relied upon already though, if they want to be there for you then let them be there for you.
Goo