Well it depends on the motive. I have an EA for a couple of months. The first time it turned into a PA I was sorry. I felt guilty. I was not remorseful. I went back to my wife. Not because I loved her, it was the guilt.
Soon after I ran back to the OW.
When I left the OW for good I was remorseful.
If you stop because of guilt it only makes yourself fell better. If you stop because of remorse it is because you know you are hurting others.