I dont know with S/W Thats sounds a bit of a weird to say, why would he have a breakdown?? I know you have said him mum looks after them, but if he wants then and is so called coping with them, how does he even think he will have a break down? How does he think we all cope? Sound to me like he is up to something. Whats he after? etc. Saying something like that make me thinks him wants something to happen and once it happens then you can have them back. I would go very careful. If you told S/W what he siad would he say he did tell you are would he try and make out that you made it up to try and get the DSs home?
My lot are eating now. Just the bedtime to do then I can rest for the day