There are many on the forum that hid their CDing from their first wives. Many have also remarried at least once. For those who initially didn't tell their first wives for whatever reason, (thought it would go away, they marriage would "cure" them, felt guilty - we have heard many explanations for the secrecy :
Did you explain things differently while dating/ or before marrying your subsequent wives?
Did you let them know up front about the CDing the second (or more) time(s) around?
Did acceptance play a part in remarriage.