Man the fuck up. She did not care about your feelings when she was fucking the dude. If a women what's to be slutty  let her be, it's her body and life. Now when a women makes a commitment  it changes  things,  Her slutty  days should be at an end. She decided to spend time with her lover over the kids. If she wasn't  happy at home she should of came to you and gave you a fair chance to fix what was broken. There are many stories  of  this same situation and the kids suffer the most. Find someone true to you. No matter what she says don't take her back. She is not remorseful  she is embarrassed. Funny how  remorse is mentioned after they get cought. Real remorse would had made her told you out of guilt. She would of confess. Bill Clinton was also remorseful  after they found semen on the dress.  

The guy probably  doesn't  want her because she was a toy. She felt used and now she knows her fuck ups. Grass wasn't  greener on the other side.why be with a dumb bitch? You don't  need to be with her to be  a good father. Get in shape, dress to impress and live happy. Then rub it  in her face. She was slut shamed now she needs to be humbled. Believe me your doing her a favor and making her think twice about cheating . She will be a better women. All because  of you.  Oh yeah fuck her best friend or sister. OK the last part is bad advice  

     😒 OR IS IT?

You did the right thing. Affairs die when exposed to sun light. 1st thing you needed to do was to stop the affair. You also embarrassed the other man by punching him out. Is she asking for reconciliation? If she is you can delay your decision and take it day by day. Most likely you are in shock and you may not be ready to make a decision yet.

Wow your story sounds a lot like what happened between my wife and I.  Very close.  I was with my wife, married or almost two years.  No kids yet but we were working on it.  I was suspicious of my wife when she started staying at work later and later.  I showed up at her work one day to take we o lunch and she was acting mad that I came to her work.  I knew then that something was up.  My wife did something much worse to me though.  She took off for a wemyself ek, didn't call, nothing.  I had no idea where she was or what she was doing.  I found out she was in Vegas.  She came back and acted like she didn't know me anymore.  It made me sick to my stomach and I was also lost and upset.  I made the stupid mistake of begging her to change her mind.  It just made it worse between us.  That was in 2012.  To this day, I miss her so much and often think about her.  I would stay up at night and think about her and wonder how she was doing.  It only made me depressed and doubt myself as a man.  You are going to have to muster up as much strength as you possibly can.  You will miss her but eventually see that she was the selfish and life goes on.  I feel for you mad your situation.  Try to be strong.  

I can understand your anger and distress. My wife cheated with one of my junior execs, a real loser both in looks and personality, but an obvious winner in other ways.  He certainly saw an opportunity and went for it. Like you i felt truly bereft, I couldn't understand why she was throwing everything we had away - it had all seemed so good.  Obviously it wasn't, and I had missed signs of real distress. Unlike you I had no control over the final outcome, there was no remorse, no discussions, no way back, she was leaving and wanted an immediate divorce.  Her whole personality changed, there was no emotion, no sentimentality - it felt as though she was getting even, avenging some crime I had committed, even down to leaving me to pay her tax bill (she was self employed!) and all the credit card bills maxed out during pre-leave spending sessions. Yet after all that I still loved her and would have done anything to have had a chance to start over. Maybe I'm a wimp, but you cannot let your life be driven by anger. If your wife really was the 'one' and is remorseful, truly fegreting her actions, then perhaps you should endeavour to rekindle the relationship. If you don't try then I know that years on you will regret your inaction. Manningup is not always about chest-beating in anger, it takes far more strength to rebuild connections than to destroy them.  As far those guys that have mentioned DNA-testing your children, why put yourself through the agony of thinking that the children are not yours - leave that to emotional masochists who enjoy making themselves suffer.