It is rare that I side with an OPs blended family opposition... but this is a kid and no kid should be exposed to the toxic crap that you are targeting him with. It is you and your twin spawn that are the evil ones in this picture.  For this kid's sake I hope his mother lives forever because it is his father and the father's earlier spawning partner (YOU!) and the twins that represent the shallow and polluted end of this kid's gene pool.

I get infidelity, how painful it is, and how it can destroy people.  My XW was an adulterous whore and it is only due to the good fortune of not polluting my gene pool by spawning with her that I avoided my version of what you have experienced.  However, I would not destroy a child no matter what. And for sure not to just to make myself feel better.

Grow up lady!  Quit being a toxic hag and get  your toxic kids under control.  Quit trying to destroy this little boy's life.  He should not be sacrificed in order to make you and your toxic twin spawn feel better.

Grrrrrrrr!!!!!!!!!!!!!

My mouth is still dropping from reading this post. You are abusing a child and literally killing his spirit...he cannot help how he looks or his father's choices. You need to get help for you and your children. What are you teaching your own children?? I feel incredibly sad for this boy...he's just a child being emotionally abused by three people in his home...a place where he should at least feel safe!

Iam not judging just adding my two cents. I understand the pain of infidelity, I really do. I also understand dealing with a nut job bm. I understand disobedience from a stepchild who seems to never listen. But this post I cannot understand. You and your husband desperately need couples therapy that poor boy needs therapy as well for all he has gone through. Yes I believe that biologically you want to invest in your own product, but by no means does that mean you have the right to hurt that child. And I understand you might not even care but that child needs love and guidance and acceptance..you dear woman are the reason all us stepmoms are painted with the same brush as "evil" that little boy made you something for mothers day he just wanted to reach out to you and again you hurt him and shove him away with both hands! Think about the REJECTION you felt when your husband cheated think about the PAIN it causes you..and REALIZE you are projecting your pain onto an already traumatized little boy! Get off your pity train and get help! It will take years to undo all the hurt you put him through!

I would recommend therapy for you.  And if I were you I would remove myself from this situation.  You ae treating a CHILD terribly.  I'm sure you are doing damage to him.  I can understand not treating him or loving him as your own, but you are being deliberately cruel to him.  That's unacceptable.  The fact that you only do it when his father isn't around tells me that you KNOW you're being cruel and that it is unacceptable behavior.  Seriously, get therapy so you can get on the path to being a better person.  You're not acting like a good person now.