Sorry to hear. Believe me I know how devastating this is. I will tell you right now from experience stop thinking about it as soon as possible because it will ruin your life. Just take that she has moved on and you move on as well. Don't ask the girls but if they say anything about this OM set boundaries with wife on him seeing her. Now if they are together there is not much you can do, but he should never see them alone. Set the boundaries and stick to them. Tell her you are lowering the payment. Finally when you think about it work on the thought stopping. I know it is new so you will need some time to process, but don't let this stop you.
Keep your head high and you are right this other guy will not last for forever and he since they are dating when things go down because of her issues he has no reason to stay so she may be alone soon anyway.
Me29 S3 H left 4/1/09 I file 8/2/10 Divorce final 5/17/11 1st http://www.tinyurl.com/25lhu52 2nd http://www.tinyurl.com/2c35ueg 3rd http://www.tinyurl.com/322yk89