Dear Anita, thanks for answering me.  What you say is right, anxiety for the future on the one hand leads him to make concrete plans to improve our lives, but it is impossible for him to put a limit to this mental setting, and leads him to consequences, in my opinion extreme, of unjustified concerns.  I will try to see what he  thinks of the therapy.  Surely I too have to learn to define strong boundaries and not to be influenced by his anxieties.  Not to get him away, but to preserve the serenity and balance I struggle to find.  I believe that if I can maintain my peace of mind, it will benefit both.
Thank you very much for helping me to reflect and to see my situation from the outside.