I feel like I either need to record our conversations or have someone else present as I truly can't see what I am saying or doing wrong and it is making me feel like I am insane.
Gaslighting. I used to write down each conversation immediately after it happened, then call a trusted friend or family member and repeat it back to them. Relaying it back word for word, and seeing the horrified reactions from those people, was the wake-up call I needed to see it for what it was. I also saw my psychologist every other week to get an impartial third party's perspective. I guarantee you are not doing anything objectionable. You're not going mad, I promise. You are being subjected to an insidious form of abuse driven by his desperate need to shift the blame and justify his betrayal. I'd strongly advise grey rocking him. NC is the way, the truth, and the light. Do not validate abuse.