Wife been having an affair with another woman.

[Dyno]

Hi I'm new to the board and have just found out that my wife has been having an affair with another woman. She said its been goin on for a little less than a year we have 3 young boys 13,11,4 whom we both love very much. I love my wife more than words can say and am just unsure on how to try and win her back if it's even possible.