Some marriages aren’t worth saving. If a spouse doesn’t have enough respect for the marriage to keep from straying then it isn’t much of a marriage.
WONDERFUL ADVICE!
I had a husband, once upon a time, who couldn’t keep it in his pants. It nearly drove me to suicide. I kept giving him chance after chance after chance. He had no desire to salvage our marriage and I couldn’t make the marriage work by myself. Once I worked up enough courage to leave his sorry ass, I realized that it was his loss, not mine. I am worth much more than that, and he was taking me for granted. I knew there was someone out there who would appreciate me enough to be faithful, and I found that man.
You say this is not the first time your wife has cheated on you, so that proves that she has no desire to make your marriage work. It’s time to start respecting yourself, since it is obvious she has no respect for you.