I´m really grateful for all the answers received. I forwarded some quotes to my ex husband and he was as shocked as I was at the beginnig.
We started to follow some steps: Stopped enabling him giving him everything he wants. It is so soon, there has been no reaction, but we are taking some steps to prevent or try to manage this situation.
I also decided, I am entitled to be happy for the first time in my life and receive with gratitude what people that loves me are giving me, like my fiancee. I deserve a happy life. I tried giving one to my son but he took the his own decisions, and one is being an abusive and angry person.
I continue my plan of serching for therapeutical help, if he is not taking it, I am taking it, because I feel I need professiona. support in this moment so critical.
I am setting boundaries (so difficult it has been to settle boundaries and limits to my son) I have the determination to keep them, even if the world turns upside down.
Thank you very much, again. I appologize for my English, because it is not my primary language, but I try to do my best.
Love to you all.