Cake eating men will never ever ever quit their cake eating unless someone takes the cake away.
You should probably start by ending the relationship. Otherwise he has absolutely NO motivation to confess or change his ways. I know this from my own personal stupid experiences.
I was involved with a married man for a 5 year affair. Fed up with affairing, I ended the relationship and told him I was done being his affair partner and would accept nothing less than a real relationship. After ending it, I worked Follow Me love spell kit to make him obsess on me. After a few weeks, he totally confessed to her and left her. He moved in with me and started working on his divorce. When the time to divorce crept closer, he totally freaked out and packed his bags while I was away. The divorce and custody and financial battles became too stressful to deal with. Reality HIT the cake eater and the cake eater ran home to patch it up with his wife. Cake eating men LOVE the endless supply of cake they are given while affairing. He would NEVER have stopped until I made him make a decision by ending the affair. In the same token, FEW of these cake eaters want their lives disrupted. Cheating men, do NOT want to leave their wives, no matter what they say or claim. This man was obsessed with me during the affair. He wrote me daily love letters for FIVE years. He spent every spare second he could with me...however..I realize now, this wasn't TRUE love..I was a fantasy and escape from reality for this man. He selfishly watched me live a single life, sleep alone at night, spend holidays alone so he could have EVERYTHING--his wife, family life and his endless supply of pretty frosted cake!
I think my spellwork worked to do what I wanted it to do but it was not sufficient to deal with the aftermath that followed. Be prepared if he confesses, that YOU very well might be the one left...not his wife. After he left I worked honey jars on me and him--to keep him sweet on me. But really, he was not the same man after he left. He was absolutely a wreck. I would have worked endless spells to keep the relationship together.
As much as this man loved me, it was in a very selfish way. He felt completely entitled to having me put my life on hold for him while he had...well, EVERYTHING! He would have continued the affair until he was an old man, if I allowed it. If I called him today, he would happily start up again, if he could get away with it.
Consequences for his actions? Hmm well his wife took him back and tried to pretend like nothing happened. She probably keeps him on a shorter leash now and no longer shows him the trust she used to. His family and friends were surprised to find out that he was capable of such a thing. But for the most part, I think he got through it all pretty unscathed. When my guy confessed, his wife wanted to work it out. She did NOT want him leaving. Don't be surprised if the wife doesn't throw him out on his ear.
That was my experience. Good luck!!