Hello tom,
Welcome to MB although I'm sorry you are here for Infidelity.
First of all,it's good that you are both going to counseling.It's a start but I must say that you should prepare yourself for more diffcult and painful times ahead.Affairs rarely end right away and I would not be surprised if your WW(wayward wife) was still in contact with the OM(other man) or that she will be again if the withdrawal starts to hit harder.
Is this OM married too? Do you know him? Has your WW told you it is over and she wants to work on the marriage? Be prepared for your WW to be nice to you one day and the next she wants to leave you.She will be carrying all kinds of emotions that she will heap on you: anger,jealousy,blame,sadness,etc.She will blame you for what SHE chose to do.Never forget that it was 100% her CHOICE to cheat and it is NEVER the right way to handle ANY marital problems.Even if you were physically abusing her she should get out of the marriage and divorce you,not cheat first and hope for the best.
So,if I may suggest,take a look at LostInMn's thread where I posted some advice to start off with.Also,as angrry as you have right to be,don't explode on her with your own emotions.It can push her away and make her want to flee.It's ok to tell her how you are feeling but try to do your best in keeping things calm.If you want a chance at saving your marriage you need to do what you can to keep the lines of communication open with your WW.If you're yelling at her,she will just feel more secure in her decision to cheat and look at you like the monster she has made you out to be so she could be with this OM.Also do not leave anymore if you can help it.In order to deal with this,you need to be home and it looks better to your WW if you are there.
Lastly for now,protect those children from this mess if you think you are reconciling.They should be the priority here and the less they know for now,IMO,the better.You can tell them age appropriate information such as you and Mommy are trying to work on some problems but that it wasn't their fault in any way and there was nothing they could have done to prevent it,etc.I don't know how much,if at all,your kids know about what is going on but if they know anything,I am sure it's very scary for them.Reassure them as much as you can.
Take some time to read all the concepts here and especially Plan A under the Q&A section at the top.We are here to help.
O