mommy is very, very ill. at this time, it's best that you live here where you're taken care of...because mommy can't take care of you right now. she may never be able to take care of you, and you'll always be safe here. she loves you very much and wishes that you could be with her, but it isn't possible right now. (and i think i'd limit the phone calls..........)

she has a disease. talk to him from that foundation. just like if she had cancer.

and as esthersvirtue said, a therapist!!!!!!