i agree with BLUEMOUNTAIN,

better for them to stay in canada and REstart.
better chances, better life for the children,
it will sure be hell for him,
but eventually, with the children to keep him busy
he will be fine... HAVE FAITH.
leave the wife be if she chooses the other path.

he must be strong for the children...
HE IS THE BEST THEY WILL EVER HAVE.