Okay, maybe I have placed too much weight on your mention of there being nothing to lose because of "preparing to move out". That sounded imminent if not in the process. In your most recent reply it does not sound like moving out, but living together as friends.
There is a big difference between her telling you not to do boyfriend things and not knowing anything and "twice she has tried to get the relationship going again".
In a text based forum assumptions will be made. We don't have the information that you have and we only get your personal perspective. We must fill in the blanks, the huge gaps. This requires taking small fragments you have provided and tying them together to develop reasonable assumptions. For example, it is reasonable that the miscarriage is not "the cause".
I guess where I am not clear is that you paint a sort of two-sided picture that is not that easy to reconcile. On one side you say there is nothing to lose because you are at the end in preparation to move out and telling you not to act like a boyfriend. Yet then you say she has tried twice to reconcile. Those two narratives seem at odds to me.
How much longer before one of you moves out? Or did I take that too literally?