Infidelity Support Group
Any relationship in which one partner engages willfully in sexual relations with another outside of the partnership is considered to have experienced infidelity. This breach of trust is often traumatizing for the faithful partner as well as the relationship, and support is often needed to heal emotionally and to decide whether or not the relationship should continue after...
It's understandable why you would have a barrier up. He isn't trustworthy, disloyal, gaslights you, and doesn't seem to be able to grasp the pain you are in.
He certainly lacks the ability to have empathy.
He ended the marriage the second he cheated and that's all on him.