I know how rubbish it is. The way i see it. I dont like it, i dont want to know her, i would absolutely prefer for my kids not to know her. They will know the truth one day, as in they will comprehend fully.
But H lives with OW now and whilst its a rental and i personally think it wont last, my priority is the kids. Which means that all i want is for H and OW to treat my boys well. How horrible would it be if your W OM was horrible to the kids for example, but you still dont have a choice but for them to go and spend time with them?!
Ill be honest boys rarely mention OW, they are very much into dad and just want his attention.
There will be many people in your childrens lives who will be temporary, teachers, friends, classmates, possible This OM or another. You and the closest family will however always be there and will always be the most important people in their lives. Just hope that all the temporary people in their lives are nice to them.