Usually, I have found, when she accuses me of something its based in her insecurity not my reality.
That's correct. She projects her feelings onto you when she doesn't have the information she needs. When she doesn't get back what she needs your response validates her insecurities. In any healthy relationship you need to communicate what the other side needs to understand. So you don't let her (anybody) fill in the blanks for you.
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.