If a husband told his wife he cheated 3 or 4 times on her when you know it was about 20 times should you tell his wife?

No, because if you tell the wife then she will go to the husband and tell him that you said that he cheated 20 times and then they both will come right back to you like you the bad person and they will curse you out and stuff like that . So , if a couple is having a problem then don't tell the wife that the husband cheated 20 times.