Many have commented on keeping those expectations v low. So no need for me to echo them. Treat it as a good sign but remember until you arrive at the destination you are only going in the right direction. But that beats going in the wrong direction where there are no signs pointing to where you want to go.
My main advice to you is to resist a while longer before addressing your need to be heard about your side of this. For the moment she is still unsure about you. Until she is 100% sure, best to leave her "cook". That time will come. You will make sure that it does, so no need to worry about that.
Do what you can to dissipate that resentment. It will do you only harm and could jeopardize further progress. You are right to feel resentment and betrayal, or at least it is normal. You could pick your moment and release all of that built up resentement and let her know she was wrong and hence you are right. But being right isn't everything. Dig a little deeper for patience.
Read up on resentment.
Best wishes
R 25 years M 14 years S11 & S13 Working on it alone since Oct 2014 M in trouble a lot earlier (~2 years) Feb 2016. 1st R chat in a yr. Next R chat Aug'17 Still together