It depends.  If you are interested in increasing the probability of saving your relationship in the long term, then yes.  If you are not interested, then no.  Those who are involved in infidelity often make great efforts to avoid detection.  Betrayal and infidelity involve secrets.

A 2005 study revealed that couples who maintained infidelity a secret did not improve, indeed, in many cases the relationship deteriorated, compared with couples who revealed the infidelity and made it the focus of treatment.  Evidence suggests that revealing an infidelity is an important, if not essential, component for the recovery of couples affected by infidelity.

There are no guarantees.  Infidelity es the greatest destroyer of relationships, whether confessed or not.  But research suggest that the best chance you have to save your relationships is by confessing your infidelity.  Though it can create short term chaos, long term odds of saving a relationship are greater.

People who keep important secrets such as infidelity, estimate hills as steeper, distances as longer, physical tasks as requiring more effort and are less likely to help others with physical errands.  All perceptions and behaviors similar to a person who is carrying a physical weight.[1]

[1] The Physical Burdens of Secrecy; Michael L. Slepian, E. J. Masicampo, Negin R. Toosi, Nalini Ambadi, Journal of Experimental Psychology, 2012.

By Frederick Norman Tate, author of “Why Romantic Love Dies… Or Thrives”