Watching with family, where's Ashley's kid(s)?

Ive seen a lot of heartland but mostly because my family waychs it when im with them. They've explained a bunch of stuff to me.

But the question is on Ashley's kid(s)? Its mentioned that Ashley's returns and is getting back together with celeb after he and Nathan crashs the helicopter or plane or whatever.

She mentions kids and then says her husband left her for a 20 year old.

Where are they? Who are they? Do we know anything about them?