Optimistic, your 'silence' makes me think you're not charmed with what I said, and I think I understand, so let me explain:
Having been in lesbian relationships, my take on the whole issue is:
Gay relationships, and especially relationships between two women, are very intense, and very emotionally focused. In straight relationships, the relationship also starts off with total focus on emotions and the relationship itself, but this naturally sort of 'devolves', and other things become more important, such as the family, finances and individual interests and personal growth, separately pursued (he goes fishing, she does photography, sort of thing). Straight couples also become more involved in the community, especially when the kids go to school, make friends and move outside the family circle due to widening interests. These things contribute to the 'glue' of the relationship.
In my experience, this doesn't happen in gay relationships - where the focus remains on the quality of the relationship itself, and the emotions and interaction of the two partners.
This is high maintenance, heavy duty stuff. And then, when the 'magic' disappears (as it inevitably MUST), they think they are 'no longer in love' and have to move on to new partners. 'Lesbian bed death' is a common occurrence.
The way I see it: yes, your relationship may be at this juncture. But there is another thing in the mix: ptsd. This means that your girlfriend now wants and needs to focus on her own emotions / past / stuff / future, and that the intense emotional connection you want from her is probably too much.
This is my analysis of what's happening - I won't give you advice, as my take may not be accurate.
I hope this clears my original statement up, somewhat.
Take care.
