Eventually, the truth bubbles up from deceit and lies. I am glad you are now aware of his shenaniggans, so that you are never tempted, even a teeny tiny bit, to take him back if that were a possibility.
The OW got what she deserved. Take care.
Me:57 H:52 M:28 Got another lawyer last year and filed. D35,S/D twins28,D22 EA4/04 End? Who knows? "Life is like a mirror. Smile at it and it smiles back at you." — Peace Pilgrim