Well yes, but I'm sure as a family of which they seem very close they can "read" their parents. If something was wrong they would help to fix it. I don't see any of that. In fact B&H were both moving forward in a big way.
Don't children come together, as in 'appear close', when there is a death of a parent? That says nothing about their relationships under normal circumstances. Also, adult children don't necessarily know that something is off between their parents, especially when they live in other cities or countries.