So, how can you catch a cheating spouse?
If you suspect infidelity, do not confront your spouse until you have proof.
And while it is helpful to talk to partners about most relationship problems, this is NOT the case when it comes to infidelity. A cheating spouse will almost never admit to infidelity, unless presented with evidence to the contrary.
Even when presented with evidence, some spouses continue to lie (see, husband won't confess).
Along the same line, while there are many tactics that you can use to get a partner to be more truthful, these tactics fail to work when it comes to infidelity.
Despite these problems, there are several practical methods for catching a cheating spouse.
All of these methods rely on some form of surveillance and careful observation. And while these methods can raise some ethical issues (see, is it ethical to spy on a spouse), they also tend to be very effective.
These methods allow you to establish proof of an affair. No matter what your situation might be, there is most likely a way to discover the truth.