Hopefully, this will help; it was a description of OW Withdrawal someone asked for in a PM:
Your husband will not go into OW Withdrawal, until ALL contact has ceased with her, regardless if it is he who breaks it off, or she.
At first, he will feel some relief, especially if it's him who initiates the break up. But what he won't realize is that anytime you end a relationship, you must process it, learn from it, and heal from it.
When you make a connection to someone, that person takes a place in your head and in your heart. When the connection is broken; in essence, you are facing the 'death' of that relationship, and a grieving process is gone through.
He will still have feelings for her, and those will take time to work through; he will evidence deep confusion, depression, sadness; and it won't be unusual for him to talk all over the place, saying weird things at times. He can go as far as blaming you for his having to cut contact with her.
He will reject you again if you approach him; and he also will have a great deal of guilt over having 'abandoned' his OW, as well as guilt over his committing of adultery. His conscience will be tormenting him heavily. You will see him withdraw into himself for a time.
Understand, that IF he resumes contact with her, and breaks it off again, the whole process will begin again from the beginning; and TIME will be added, as it will take LONGER for him to process this through.
The only way to come through this completely, will be to NEVER contact her again...and this is up to him; you cannot help him with this, or the OW Withdrawal...these are things he must do on his own.
Given time, he will work through all of this, and after he finishes, he will turn back toward you.
The process is very similar in each case; although, some OW/OM Withdrawals are worse than others; it depends upon the depth of attachment to the OW/OM...times I don't have, as I don't know how long it takes to come through it.
Does this help?