A.N.
Hey there L.! -
Yep - this happened to me with my now husband of ten years. It is embarassing to say the least HOWEVER - you must stick with the main issue here - This is NOT about you or your sex life, it is about your son 1)He is scared of change; 2)He acted inappropriately by opening a closed door without knocking.
Here's the deal really and I know that you will know exactly what I am saying here. Your son's last bit of "hanging onto the past" (which was his only security) - was YOU - Mom! And, he is angry because you, just like his father, are now moving on and changing the whole deal - which affects your son greatly.
It is horrible for a boy to experience his father not only leaving but then "replacing" (in your son's eyes) his mother - it throws boys into so much confusion, anger and upset! And, you can guess the rest - due to the circumstances your son was probably feeling loyal and protective of you, emotionally. And, he maybe now feels some betrayal from you and your new guy. And, more confusion as to why his parents are acting this way - to him you are just all supposed to stay married, stay "friends" - you get my meaning.
Kids secretly hope that their parents will get back together and you just threw that out the window for him. It's okay L. - because your son will have to face reality - this is what's important here - BUT ONLY AFTER he gets it that your sex life and personal life is none of his business AND not the real issue here - you must be firm on that because if you get lost on this, he will be too. He must take notice of what is going on inside of "him" about what has happened in his life recently, and he must be clear that he is NEVER to go into anyone's room without knocking.
Right now, you can discuss feelings with him ONLY if he wants to. He just needs time, which will help him most; along with you and your beau keeping everything the same and him(beau) still spending time with the kids - even more so for the next couple weeks. This shows your son that no one is going anywhere - no one is leaving him, etc... and whether your son would even understand this, it will give him the security he so desperately needs right now. To him, everyone keeps changing the rules - poor kid! Yet, it will settle down and he can get through this.
Say things to your son like, "I know that things are changing and that is so hard sometimes." And, "I am sorry that your father and I did not stay married - I know it is hard to accept this, but you must accept it and accept that things are going to change, hopefully for the better!" Or, "Wow, life sure does move in directions we aren't always sure about. That's when it's important to trust that things will get better, and that you are so loved." This will give him the idea that you now are ready to make new memories with someone else and it doesn't take away from the past, just moves you all into a happy future - which is better than how things had gotten when you ex started up that relationship so quickly.
And, repeating this - it is really important that your fantastic guy be around a lot for awhile to help you on this. His actions will show your son; and actions at this point are most important while your son is still angry, (scared)etc to show him stability AND that your son does not have the power to push your and your beau's life around like that - you guys are in control, which your son actually needs to see.
My beau (now my hubby) never left when it happened with us and then when he did leave the next morning, he was back again that afternoon and we just kept things normal. Normal will equate to security for your son - he will try and buck it at first but you guys stay strong and keep up that care and security for your son - he will come around - sooner than you think. He will know how much fun you all have and also that you are happier - all of you.
Hang in there and keep on focus with him - not always easy but very worth it - don't let your son suck you into debates about how often, when, etc... on your sex life. That isn't the issue. I wouldn't even go there with him - it's not up for discussion.
Good luck - I wrote a lot in hopes that it all hits home and helps you.
Alli