Bless bless bless you! What a touching, lovely, loving story. You must be one of my long lost sisters bc it was like reading about something I'd do (and have done).
You are a truly good person and have given a wonderful, loving creature a wonderful, loving home. He is so lucky - and clearly you are too, he sounds like a heartful!
I bet his half-sister secretly loves him to no end, but dang if she'll admit - that's part of her charm, I'm sure.
Cheers to you and your babies!
Ann