Suppose your partner is more attractive, wealthier, more interesting, and makes you feel better than other people your SMV would allow you to get.

Would you not want to know they cheated on you if their behavior to you never changed and no one ever found out (including yourself)...

OR

Would you rather find out, break up, and get someone else who is less attractive, less interesting, less wealthy, and doesn't make you feel as good, but is still a decent person to be with?

Do you think your length of relationship, kids, or laziness to find someone new influences your answer?

Personally, I don't think I'd want to know if I am already punching above my league. Why go through the heartache only to downgrade