Sometimes, I think, it always ends up this way. With my first boyfriend, I broke up the contact. He cheated on me as we were together, and I did not want to keep up this contact afterwards.
With my second boyfriend, there still is some contact, and a nice one. We write mails, not often, but it is nice, nevertheless. After we parted, we lost contact for some years, but we never forgot the other one.
In September, I lost my great love. I would like to keep up a friendship, but I cannot tell now, whether ist´s possible. We have very rare contact, it is too fresh now. What I was happy about, was the fact, that "the end" was peaceful and fair. And this is a duty, I think. If you have really loved the other one, you have to be fair, and KEEP fair.
Jenny, I think, you ex is not fair. Neither to you, nor to your little son, and that is the worst thing, in my opinion. The child has no fault, and the child has to be kept out of everything as much as possible. The boy has to find some peace with the situation, so that he doesn´t feel a damage in his soul.
I hope you can understand what I mean, and of course, you can also mail to me if you like.
I wish you all the best and lots of strength.