Frankly, it could just be a passing phase.
I feel that this is terrible advice as well. After having my wife tell me how her affair of 1 year started with an "understanding man"... I am VERY suspect of this being a passing phase. Seeking a Christian Counselor is crucial, and having him cut off ALL communications with her, IF there is any chance of it being an affair.
The red flag with me is that he said he wouldn't stop talking with her.
THAT is the issue I was having when I confronted my wife about her affair. After seeing a counselor, she told me that it is a normal response when someone is having feelings for someone and they are asked to stop. Again, it screams of "warning signs"... NOT "passing phase"
Have a blessed day,
-emptymailbag