His relationship with the OW was for four months, with the last month being a full fledged EA.
I suppose it depends on how your relationship came about; when I met my wife, I was an emotional wreck.
The sad part is that it cannot monitor Facebook activities but it will verify what your partner is doing on WhatsApp, messages and in iMessages.
How to Find Out If Someone Is Cheating on Facebook? But smartphones have changed all that, and it's gradually grown more acceptable to text someone—and even to expect a response—long into traditionally intimate, late-night hours.