As their mother, I feel hurt and angry when you chose to see C over N. If you do not spend time with them equally, I will limit the time you spend with them. If you continue to slight N - which hurts him deeply - I will stop all visits until this matter is settled to my satisfaction, with the assistance of Social Services or through legal custody action.
In addition, exposing the boys to your mistress is hurtful and confusing to them and is completely unacceptable. If you will not spend your time with them both alone, I will take the same steps laid out above.
All visiting arrangements will be made by you and me alone or not at all. I will not allow arrangements to be made solely between you and N.
Serenity
Gardener
"My soul, be satisfied with flowers, With fruit, with weeds even; but gather them In the one garden you may call your own." Cyrano deBergerac